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Finding the Fourth Proportional to 114,403.48, 157,882.60 and 65,987.39

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Solution

The fourth proportional to 114,403.48, 157,882.60 and 65,987.39 is: 91,065.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,403.48 : 157,882.60 = 65,987.39 : x
  2. Step 2: Convert to fraction form
    114,403.48/157,882.60 = 65,987.39/x
  3. Step 3: Cross multiply
    114,403.48x = 157,882.60 × 65,987.39
  4. Step 4: Simplify right side
    114,403.48x = 10,418,261,177.60
  5. Step 5: Solve for x
    x = 10,418,261,177.60/114,403.48
  6. Step 6: Final answer
    x = 91,065.95

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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.