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Finding the Fourth Proportional to 80,924.86, 121,174.62 and 65,045.62

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Solution

The fourth proportional to 80,924.86, 121,174.62 and 65,045.62 is: 97,397.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,924.86 : 121,174.62 = 65,045.62 : x
  2. Step 2: Convert to fraction form
    80,924.86/121,174.62 = 65,045.62/x
  3. Step 3: Cross multiply
    80,924.86x = 121,174.62 × 65,045.62
  4. Step 4: Simplify right side
    80,924.86x = 7,881,878,286.16
  5. Step 5: Solve for x
    x = 7,881,878,286.16/80,924.86
  6. Step 6: Final answer
    x = 97,397.49

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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.