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Finding the Fourth Proportional to 114,691.64, 158,266.78 and 63,700.20

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Solution

The fourth proportional to 114,691.64, 158,266.78 and 63,700.20 is: 87,902.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,691.64 : 158,266.78 = 63,700.20 : x
  2. Step 2: Convert to fraction form
    114,691.64/158,266.78 = 63,700.20/x
  3. Step 3: Cross multiply
    114,691.64x = 158,266.78 × 63,700.20
  4. Step 4: Simplify right side
    114,691.64x = 10,081,625,539.36
  5. Step 5: Solve for x
    x = 10,081,625,539.36/114,691.64
  6. Step 6: Final answer
    x = 87,902.01

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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.