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Finding the Fourth Proportional to 127,691.93, 176,058.73 and 79,862.24

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Solution

The fourth proportional to 127,691.93, 176,058.73 and 79,862.24 is: 110,112.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,691.93 : 176,058.73 = 79,862.24 : x
  2. Step 2: Convert to fraction form
    127,691.93/176,058.73 = 79,862.24/x
  3. Step 3: Cross multiply
    127,691.93x = 176,058.73 × 79,862.24
  4. Step 4: Simplify right side
    127,691.93x = 14,060,444,549.36
  5. Step 5: Solve for x
    x = 14,060,444,549.36/127,691.93
  6. Step 6: Final answer
    x = 110,112.24

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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.