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Finding the Fourth Proportional to 104,385.60, 156,592.80 and 37,809.60

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Solution

The fourth proportional to 104,385.60, 156,592.80 and 37,809.60 is: 56,719.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,385.60 : 156,592.80 = 37,809.60 : x
  2. Step 2: Convert to fraction form
    104,385.60/156,592.80 = 37,809.60/x
  3. Step 3: Cross multiply
    104,385.60x = 156,592.80 × 37,809.60
  4. Step 4: Simplify right side
    104,385.60x = 5,920,711,130.88
  5. Step 5: Solve for x
    x = 5,920,711,130.88/104,385.60
  6. Step 6: Final answer
    x = 56,719.62

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1.5x scale

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.