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Finding the Fourth Proportional to 126,859.71, 175,066.61 and 69,497.79

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Solution

The fourth proportional to 126,859.71, 175,066.61 and 69,497.79 is: 95,907.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,859.71 : 175,066.61 = 69,497.79 : x
  2. Step 2: Convert to fraction form
    126,859.71/175,066.61 = 69,497.79/x
  3. Step 3: Cross multiply
    126,859.71x = 175,066.61 × 69,497.79
  4. Step 4: Simplify right side
    126,859.71x = 12,166,742,671.54
  5. Step 5: Solve for x
    x = 12,166,742,671.54/126,859.71
  6. Step 6: Final answer
    x = 95,907.07

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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.