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Finding the Fourth Proportional to 126,702.53, 174,821.58 and 75,707.63

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Solution

The fourth proportional to 126,702.53, 174,821.58 and 75,707.63 is: 104,459.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,702.53 : 174,821.58 = 75,707.63 : x
  2. Step 2: Convert to fraction form
    126,702.53/174,821.58 = 75,707.63/x
  3. Step 3: Cross multiply
    126,702.53x = 174,821.58 × 75,707.63
  4. Step 4: Simplify right side
    126,702.53x = 13,235,327,494.66
  5. Step 5: Solve for x
    x = 13,235,327,494.66/126,702.53
  6. Step 6: Final answer
    x = 104,459.85

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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.