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Finding the Fourth Proportional to 127,707.88, 176,224.26 and 71,124.52

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Solution

The fourth proportional to 127,707.88, 176,224.26 and 71,124.52 is: 98,144.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,707.88 : 176,224.26 = 71,124.52 : x
  2. Step 2: Convert to fraction form
    127,707.88/176,224.26 = 71,124.52/x
  3. Step 3: Cross multiply
    127,707.88x = 176,224.26 × 71,124.52
  4. Step 4: Simplify right side
    127,707.88x = 12,533,865,904.86
  5. Step 5: Solve for x
    x = 12,533,865,904.86/127,707.88
  6. Step 6: Final answer
    x = 98,144.81

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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.