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Finding the Fourth Proportional to 126,543.52, 174,623.20 and 69,951.25

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Solution

The fourth proportional to 126,543.52, 174,623.20 and 69,951.25 is: 96,528.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,543.52 : 174,623.20 = 69,951.25 : x
  2. Step 2: Convert to fraction form
    126,543.52/174,623.20 = 69,951.25/x
  3. Step 3: Cross multiply
    126,543.52x = 174,623.20 × 69,951.25
  4. Step 4: Simplify right side
    126,543.52x = 12,215,111,119
  5. Step 5: Solve for x
    x = 12,215,111,119/126,543.52
  6. Step 6: Final answer
    x = 96,528.93

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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.