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Finding the Fourth Proportional to 127,510.72, 176,001.84 and 85,069.14

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Solution

The fourth proportional to 127,510.72, 176,001.84 and 85,069.14 is: 117,420.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,510.72 : 176,001.84 = 85,069.14 : x
  2. Step 2: Convert to fraction form
    127,510.72/176,001.84 = 85,069.14/x
  3. Step 3: Cross multiply
    127,510.72x = 176,001.84 × 85,069.14
  4. Step 4: Simplify right side
    127,510.72x = 14,972,325,167.22
  5. Step 5: Solve for x
    x = 14,972,325,167.22/127,510.72
  6. Step 6: Final answer
    x = 117,420.13

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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.