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Finding the Fourth Proportional to 127,423.68, 175,831.20 and 73,700.16

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Solution

The fourth proportional to 127,423.68, 175,831.20 and 73,700.16 is: 101,698.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,423.68 : 175,831.20 = 73,700.16 : x
  2. Step 2: Convert to fraction form
    127,423.68/175,831.20 = 73,700.16/x
  3. Step 3: Cross multiply
    127,423.68x = 175,831.20 × 73,700.16
  4. Step 4: Simplify right side
    127,423.68x = 12,958,787,572.99
  5. Step 5: Solve for x
    x = 12,958,787,572.99/127,423.68
  6. Step 6: Final answer
    x = 101,698.43

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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.