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Finding the Fourth Proportional to 387,264.42, 581,123.99 and 162,607.58

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Solution

The fourth proportional to 387,264.42, 581,123.99 and 162,607.58 is: 244,006.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,264.42 : 581,123.99 = 162,607.58 : x
  2. Step 2: Convert to fraction form
    387,264.42/581,123.99 = 162,607.58/x
  3. Step 3: Cross multiply
    387,264.42x = 581,123.99 × 162,607.58
  4. Step 4: Simplify right side
    387,264.42x = 94,495,161,975.19
  5. Step 5: Solve for x
    x = 94,495,161,975.19/387,264.42
  6. Step 6: Final answer
    x = 244,006.83

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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.