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Finding the Fourth Proportional to 59,931.60, 89,724.60 and 53,710.80

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Solution

The fourth proportional to 59,931.60, 89,724.60 and 53,710.80 is: 80,411.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,931.60 : 89,724.60 = 53,710.80 : x
  2. Step 2: Convert to fraction form
    59,931.60/89,724.60 = 53,710.80/x
  3. Step 3: Cross multiply
    59,931.60x = 89,724.60 × 53,710.80
  4. Step 4: Simplify right side
    59,931.60x = 4,819,180,045.68
  5. Step 5: Solve for x
    x = 4,819,180,045.68/59,931.60
  6. Step 6: Final answer
    x = 80,411.34

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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.