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Finding the Fourth Proportional to 114,245.76, 171,070.56 and 91,937.28

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Solution

The fourth proportional to 114,245.76, 171,070.56 and 91,937.28 is: 137,666.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,245.76 : 171,070.56 = 91,937.28 : x
  2. Step 2: Convert to fraction form
    114,245.76/171,070.56 = 91,937.28/x
  3. Step 3: Cross multiply
    114,245.76x = 171,070.56 × 91,937.28
  4. Step 4: Simplify right side
    114,245.76x = 15,727,761,974.48
  5. Step 5: Solve for x
    x = 15,727,761,974.48/114,245.76
  6. Step 6: Final answer
    x = 137,666.05

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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.