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Finding the Fourth Proportional to 109,727.60, 148,248.90 and 109,727.60

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Solution

The fourth proportional to 109,727.60, 148,248.90 and 109,727.60 is: 148,248.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,727.60 : 148,248.90 = 109,727.60 : x
  2. Step 2: Convert to fraction form
    109,727.60/148,248.90 = 109,727.60/x
  3. Step 3: Cross multiply
    109,727.60x = 148,248.90 × 109,727.60
  4. Step 4: Simplify right side
    109,727.60x = 16,266,995,999.64
  5. Step 5: Solve for x
    x = 16,266,995,999.64/109,727.60
  6. Step 6: Final answer
    x = 148,248.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.