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Finding the Fourth Proportional to 126,911.52, 175,091.56 and 75,925.72

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Solution

The fourth proportional to 126,911.52, 175,091.56 and 75,925.72 is: 104,749.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,911.52 : 175,091.56 = 75,925.72 : x
  2. Step 2: Convert to fraction form
    126,911.52/175,091.56 = 75,925.72/x
  3. Step 3: Cross multiply
    126,911.52x = 175,091.56 × 75,925.72
  4. Step 4: Simplify right side
    126,911.52x = 13,293,952,758.92
  5. Step 5: Solve for x
    x = 13,293,952,758.92/126,911.52
  6. Step 6: Final answer
    x = 104,749.77

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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.