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Finding the Fourth Proportional to 347,641.29, 521,330.67 and 160,521.57

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Solution

The fourth proportional to 347,641.29, 521,330.67 and 160,521.57 is: 240,721.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,641.29 : 521,330.67 = 160,521.57 : x
  2. Step 2: Convert to fraction form
    347,641.29/521,330.67 = 160,521.57/x
  3. Step 3: Cross multiply
    347,641.29x = 521,330.67 × 160,521.57
  4. Step 4: Simplify right side
    347,641.29x = 83,684,817,637.55
  5. Step 5: Solve for x
    x = 83,684,817,637.55/347,641.29
  6. Step 6: Final answer
    x = 240,721.74

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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.