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Finding the Fourth Proportional to 114,691.56, 158,272.02 and 64,390.56

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Solution

The fourth proportional to 114,691.56, 158,272.02 and 64,390.56 is: 88,857.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,691.56 : 158,272.02 = 64,390.56 : x
  2. Step 2: Convert to fraction form
    114,691.56/158,272.02 = 64,390.56/x
  3. Step 3: Cross multiply
    114,691.56x = 158,272.02 × 64,390.56
  4. Step 4: Simplify right side
    114,691.56x = 10,191,224,000.13
  5. Step 5: Solve for x
    x = 10,191,224,000.13/114,691.56
  6. Step 6: Final answer
    x = 88,857.66

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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.