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Finding the Fourth Proportional to 60,342.60, 90,366.12 and 42,529.44

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Solution

The fourth proportional to 60,342.60, 90,366.12 and 42,529.44 is: 63,690.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,342.60 : 90,366.12 = 42,529.44 : x
  2. Step 2: Convert to fraction form
    60,342.60/90,366.12 = 42,529.44/x
  3. Step 3: Cross multiply
    60,342.60x = 90,366.12 × 42,529.44
  4. Step 4: Simplify right side
    60,342.60x = 3,843,220,478.57
  5. Step 5: Solve for x
    x = 3,843,220,478.57/60,342.60
  6. Step 6: Final answer
    x = 63,690.00

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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.