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Finding the Fourth Proportional to 266,967.96, 368,432.86 and 153,788.76

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Solution

The fourth proportional to 266,967.96, 368,432.86 and 153,788.76 is: 212,238.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,967.96 : 368,432.86 = 153,788.76 : x
  2. Step 2: Convert to fraction form
    266,967.96/368,432.86 = 153,788.76/x
  3. Step 3: Cross multiply
    266,967.96x = 368,432.86 × 153,788.76
  4. Step 4: Simplify right side
    266,967.96x = 56,660,832,682.65
  5. Step 5: Solve for x
    x = 56,660,832,682.65/266,967.96
  6. Step 6: Final answer
    x = 212,238.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.