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Finding the Fourth Proportional to 104,539.92, 144,264.30 and 56,793.60

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Solution

The fourth proportional to 104,539.92, 144,264.30 and 56,793.60 is: 78,374.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,539.92 : 144,264.30 = 56,793.60 : x
  2. Step 2: Convert to fraction form
    104,539.92/144,264.30 = 56,793.60/x
  3. Step 3: Cross multiply
    104,539.92x = 144,264.30 × 56,793.60
  4. Step 4: Simplify right side
    104,539.92x = 8,193,288,948.48
  5. Step 5: Solve for x
    x = 8,193,288,948.48/104,539.92
  6. Step 6: Final answer
    x = 78,374.74

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1.5x scale

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.