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Finding the Fourth Proportional to 207,397.47, 286,224.27 and 125,749.47

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Solution

The fourth proportional to 207,397.47, 286,224.27 and 125,749.47 is: 173,543.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,397.47 : 286,224.27 = 125,749.47 : x
  2. Step 2: Convert to fraction form
    207,397.47/286,224.27 = 125,749.47/x
  3. Step 3: Cross multiply
    207,397.47x = 286,224.27 × 125,749.47
  4. Step 4: Simplify right side
    207,397.47x = 35,992,550,253.64
  5. Step 5: Solve for x
    x = 35,992,550,253.64/207,397.47
  6. Step 6: Final answer
    x = 173,543.83

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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.