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Finding the Fourth Proportional to 130,859.32, 180,404.46 and 88,350.52

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Solution

The fourth proportional to 130,859.32, 180,404.46 and 88,350.52 is: 121,801.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,859.32 : 180,404.46 = 88,350.52 : x
  2. Step 2: Convert to fraction form
    130,859.32/180,404.46 = 88,350.52/x
  3. Step 3: Cross multiply
    130,859.32x = 180,404.46 × 88,350.52
  4. Step 4: Simplify right side
    130,859.32x = 15,938,827,851.32
  5. Step 5: Solve for x
    x = 15,938,827,851.32/130,859.32
  6. Step 6: Final answer
    x = 121,801.24

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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.