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Finding the Fourth Proportional to 157,807.34, 217,717.71 and 93,262.94

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Solution

The fourth proportional to 157,807.34, 217,717.71 and 93,262.94 is: 128,669.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,807.34 : 217,717.71 = 93,262.94 : x
  2. Step 2: Convert to fraction form
    157,807.34/217,717.71 = 93,262.94/x
  3. Step 3: Cross multiply
    157,807.34x = 217,717.71 × 93,262.94
  4. Step 4: Simplify right side
    157,807.34x = 20,304,993,724.67
  5. Step 5: Solve for x
    x = 20,304,993,724.67/157,807.34
  6. Step 6: Final answer
    x = 128,669.51

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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.