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Finding the Fourth Proportional to 465,444.72, 698,153.13 and 128,505.93

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Solution

The fourth proportional to 465,444.72, 698,153.13 and 128,505.93 is: 192,755.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,444.72 : 698,153.13 = 128,505.93 : x
  2. Step 2: Convert to fraction form
    465,444.72/698,153.13 = 128,505.93/x
  3. Step 3: Cross multiply
    465,444.72x = 698,153.13 × 128,505.93
  4. Step 4: Simplify right side
    465,444.72x = 89,716,817,253.06
  5. Step 5: Solve for x
    x = 89,716,817,253.06/465,444.72
  6. Step 6: Final answer
    x = 192,755.04

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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.