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Finding the Fourth Proportional to 86,605.62, 129,916.71 and 24,275.94

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Solution

The fourth proportional to 86,605.62, 129,916.71 and 24,275.94 is: 36,416.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,605.62 : 129,916.71 = 24,275.94 : x
  2. Step 2: Convert to fraction form
    86,605.62/129,916.71 = 24,275.94/x
  3. Step 3: Cross multiply
    86,605.62x = 129,916.71 × 24,275.94
  4. Step 4: Simplify right side
    86,605.62x = 3,153,850,256.96
  5. Step 5: Solve for x
    x = 3,153,850,256.96/86,605.62
  6. Step 6: Final answer
    x = 36,416.23

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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.