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Finding the Fourth Proportional to 113,831.46, 157,087.17 and 63,530.46

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Solution

The fourth proportional to 113,831.46, 157,087.17 and 63,530.46 is: 87,671.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,831.46 : 157,087.17 = 63,530.46 : x
  2. Step 2: Convert to fraction form
    113,831.46/157,087.17 = 63,530.46/x
  3. Step 3: Cross multiply
    113,831.46x = 157,087.17 × 63,530.46
  4. Step 4: Simplify right side
    113,831.46x = 9,979,820,170.20
  5. Step 5: Solve for x
    x = 9,979,820,170.20/113,831.46
  6. Step 6: Final answer
    x = 87,671.90

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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.