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Finding the Fourth Proportional to 387,264.71, 581,124.43 and 162,607.87

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Solution

The fourth proportional to 387,264.71, 581,124.43 and 162,607.87 is: 244,007.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,264.71 : 581,124.43 = 162,607.87 : x
  2. Step 2: Convert to fraction form
    387,264.71/581,124.43 = 162,607.87/x
  3. Step 3: Cross multiply
    387,264.71x = 581,124.43 × 162,607.87
  4. Step 4: Simplify right side
    387,264.71x = 94,495,405,767.26
  5. Step 5: Solve for x
    x = 94,495,405,767.26/387,264.71
  6. Step 6: Final answer
    x = 244,007.27

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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.