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Finding the Fourth Proportional to 127,476.86, 175,919.20 and 69,334.11

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Solution

The fourth proportional to 127,476.86, 175,919.20 and 69,334.11 is: 95,681.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,476.86 : 175,919.20 = 69,334.11 : x
  2. Step 2: Convert to fraction form
    127,476.86/175,919.20 = 69,334.11/x
  3. Step 3: Cross multiply
    127,476.86x = 175,919.20 × 69,334.11
  4. Step 4: Simplify right side
    127,476.86x = 12,197,200,990.58
  5. Step 5: Solve for x
    x = 12,197,200,990.58/127,476.86
  6. Step 6: Final answer
    x = 95,681.69

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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.