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Finding the Fourth Proportional to 168,468.53, 232,484.78 and 91,987.38

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Solution

The fourth proportional to 168,468.53, 232,484.78 and 91,987.38 is: 126,941.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,468.53 : 232,484.78 = 91,987.38 : x
  2. Step 2: Convert to fraction form
    168,468.53/232,484.78 = 91,987.38/x
  3. Step 3: Cross multiply
    168,468.53x = 232,484.78 × 91,987.38
  4. Step 4: Simplify right side
    168,468.53x = 21,385,666,032.04
  5. Step 5: Solve for x
    x = 21,385,666,032.04/168,468.53
  6. Step 6: Final answer
    x = 126,941.61

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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.