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Finding the Fourth Proportional to 187,840,432.80, 262,439,128.80 and 187,840,432.80

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Solution

The fourth proportional to 187,840,432.80, 262,439,128.80 and 187,840,432.80 is: 262,439,128.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,840,432.80 : 262,439,128.80 = 187,840,432.80 : x
  2. Step 2: Convert to fraction form
    187,840,432.80/262,439,128.80 = 187,840,432.80/x
  3. Step 3: Cross multiply
    187,840,432.80x = 262,439,128.80 × 187,840,432.80
  4. Step 4: Simplify right side
    187,840,432.80x = 49,296,679,537,446,952
  5. Step 5: Solve for x
    x = 49,296,679,537,446,952/187,840,432.80
  6. Step 6: Final answer
    x = 262,439,128.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.