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Finding the Fourth Proportional to 111,132.76, 153,366.90 and 60,831.76

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Solution

The fourth proportional to 111,132.76, 153,366.90 and 60,831.76 is: 83,949.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,132.76 : 153,366.90 = 60,831.76 : x
  2. Step 2: Convert to fraction form
    111,132.76/153,366.90 = 60,831.76/x
  3. Step 3: Cross multiply
    111,132.76x = 153,366.90 × 60,831.76
  4. Step 4: Simplify right side
    111,132.76x = 9,329,578,452.74
  5. Step 5: Solve for x
    x = 9,329,578,452.74/111,132.76
  6. Step 6: Final answer
    x = 83,949.85

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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.