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Finding the Fourth Proportional to 113,585.25, 156,748.70 and 62,599.80

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Solution

The fourth proportional to 113,585.25, 156,748.70 and 62,599.80 is: 86,388.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,585.25 : 156,748.70 = 62,599.80 : x
  2. Step 2: Convert to fraction form
    113,585.25/156,748.70 = 62,599.80/x
  3. Step 3: Cross multiply
    113,585.25x = 156,748.70 × 62,599.80
  4. Step 4: Simplify right side
    113,585.25x = 9,812,438,014.57
  5. Step 5: Solve for x
    x = 9,812,438,014.57/113,585.25
  6. Step 6: Final answer
    x = 86,388.31

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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.