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Finding the Fourth Proportional to 114,476.60, 157,987.17 and 63,505.78

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Solution

The fourth proportional to 114,476.60, 157,987.17 and 63,505.78 is: 87,643.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,476.60 : 157,987.17 = 63,505.78 : x
  2. Step 2: Convert to fraction form
    114,476.60/157,987.17 = 63,505.78/x
  3. Step 3: Cross multiply
    114,476.60x = 157,987.17 × 63,505.78
  4. Step 4: Simplify right side
    114,476.60x = 10,033,098,065.87
  5. Step 5: Solve for x
    x = 10,033,098,065.87/114,476.60
  6. Step 6: Final answer
    x = 87,643.22

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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.