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Finding the Fourth Proportional to 93,909.75, 129,595.46 and 54,165.75

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Solution

The fourth proportional to 93,909.75, 129,595.46 and 54,165.75 is: 74,748.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,909.75 : 129,595.46 = 54,165.75 : x
  2. Step 2: Convert to fraction form
    93,909.75/129,595.46 = 54,165.75/x
  3. Step 3: Cross multiply
    93,909.75x = 129,595.46 × 54,165.75
  4. Step 4: Simplify right side
    93,909.75x = 7,019,635,016.67
  5. Step 5: Solve for x
    x = 7,019,635,016.67/93,909.75
  6. Step 6: Final answer
    x = 74,748.74

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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.