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Finding the Fourth Proportional to 114,079.20, 157,468.50 and 66,347.52

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Solution

The fourth proportional to 114,079.20, 157,468.50 and 66,347.52 is: 91,582.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,079.20 : 157,468.50 = 66,347.52 : x
  2. Step 2: Convert to fraction form
    114,079.20/157,468.50 = 66,347.52/x
  3. Step 3: Cross multiply
    114,079.20x = 157,468.50 × 66,347.52
  4. Step 4: Simplify right side
    114,079.20x = 10,447,644,453.12
  5. Step 5: Solve for x
    x = 10,447,644,453.12/114,079.20
  6. Step 6: Final answer
    x = 91,582.38

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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.