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Finding the Fourth Proportional to 246,415.90, 369,537.45 and 128,047.90

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Solution

The fourth proportional to 246,415.90, 369,537.45 and 128,047.90 is: 192,026.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,415.90 : 369,537.45 = 128,047.90 : x
  2. Step 2: Convert to fraction form
    246,415.90/369,537.45 = 128,047.90/x
  3. Step 3: Cross multiply
    246,415.90x = 369,537.45 × 128,047.90
  4. Step 4: Simplify right side
    246,415.90x = 47,318,494,443.86
  5. Step 5: Solve for x
    x = 47,318,494,443.86/246,415.90
  6. Step 6: Final answer
    x = 192,026.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.