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Finding the Fourth Proportional to 207,407.50, 286,238.10 and 125,759.50

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Solution

The fourth proportional to 207,407.50, 286,238.10 and 125,759.50 is: 173,557.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,407.50 : 286,238.10 = 125,759.50 : x
  2. Step 2: Convert to fraction form
    207,407.50/286,238.10 = 125,759.50/x
  3. Step 3: Cross multiply
    207,407.50x = 286,238.10 × 125,759.50
  4. Step 4: Simplify right side
    207,407.50x = 35,997,160,336.95
  5. Step 5: Solve for x
    x = 35,997,160,336.95/207,407.50
  6. Step 6: Final answer
    x = 173,557.66

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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.