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Finding the Fourth Proportional to 116,831.40, 174,987.90 and 101,279.40

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Solution

The fourth proportional to 116,831.40, 174,987.90 and 101,279.40 is: 151,694.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,831.40 : 174,987.90 = 101,279.40 : x
  2. Step 2: Convert to fraction form
    116,831.40/174,987.90 = 101,279.40/x
  3. Step 3: Cross multiply
    116,831.40x = 174,987.90 × 101,279.40
  4. Step 4: Simplify right side
    116,831.40x = 17,722,669,519.26
  5. Step 5: Solve for x
    x = 17,722,669,519.26/116,831.40
  6. Step 6: Final answer
    x = 151,694.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.