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Finding the Fourth Proportional to 127,763.85, 191,646.54 and 32,987.58

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Solution

The fourth proportional to 127,763.85, 191,646.54 and 32,987.58 is: 49,481.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,763.85 : 191,646.54 = 32,987.58 : x
  2. Step 2: Convert to fraction form
    127,763.85/191,646.54 = 32,987.58/x
  3. Step 3: Cross multiply
    127,763.85x = 191,646.54 × 32,987.58
  4. Step 4: Simplify right side
    127,763.85x = 6,321,955,569.97
  5. Step 5: Solve for x
    x = 6,321,955,569.97/127,763.85
  6. Step 6: Final answer
    x = 49,481.57

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1.5x scale

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.