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Finding the Fourth Proportional to 126,892.87, 175,112.16 and 75,907.74

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Solution

The fourth proportional to 126,892.87, 175,112.16 and 75,907.74 is: 104,752.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,892.87 : 175,112.16 = 75,907.74 : x
  2. Step 2: Convert to fraction form
    126,892.87/175,112.16 = 75,907.74/x
  3. Step 3: Cross multiply
    126,892.87x = 175,112.16 × 75,907.74
  4. Step 4: Simplify right side
    126,892.87x = 13,292,368,684.14
  5. Step 5: Solve for x
    x = 13,292,368,684.14/126,892.87
  6. Step 6: Final answer
    x = 104,752.69

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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.