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Finding the Fourth Proportional to 127,334.60, 191,205.90 and 101,256.20

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Solution

The fourth proportional to 127,334.60, 191,205.90 and 101,256.20 is: 152,046.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,334.60 : 191,205.90 = 101,256.20 : x
  2. Step 2: Convert to fraction form
    127,334.60/191,205.90 = 101,256.20/x
  3. Step 3: Cross multiply
    127,334.60x = 191,205.90 × 101,256.20
  4. Step 4: Simplify right side
    127,334.60x = 19,360,782,851.58
  5. Step 5: Solve for x
    x = 19,360,782,851.58/127,334.60
  6. Step 6: Final answer
    x = 152,046.52

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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.