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Finding the Fourth Proportional to 73,349.48, 109,920.54 and 36,439.40

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Solution

The fourth proportional to 73,349.48, 109,920.54 and 36,439.40 is: 54,607.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,349.48 : 109,920.54 = 36,439.40 : x
  2. Step 2: Convert to fraction form
    73,349.48/109,920.54 = 36,439.40/x
  3. Step 3: Cross multiply
    73,349.48x = 109,920.54 × 36,439.40
  4. Step 4: Simplify right side
    73,349.48x = 4,005,438,525.28
  5. Step 5: Solve for x
    x = 4,005,438,525.28/73,349.48
  6. Step 6: Final answer
    x = 54,607.59

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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.