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Finding the Fourth Proportional to 127,561.44, 176,024.06 and 75,165.11

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Solution

The fourth proportional to 127,561.44, 176,024.06 and 75,165.11 is: 103,721.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,561.44 : 176,024.06 = 75,165.11 : x
  2. Step 2: Convert to fraction form
    127,561.44/176,024.06 = 75,165.11/x
  3. Step 3: Cross multiply
    127,561.44x = 176,024.06 × 75,165.11
  4. Step 4: Simplify right side
    127,561.44x = 13,230,866,576.60
  5. Step 5: Solve for x
    x = 13,230,866,576.60/127,561.44
  6. Step 6: Final answer
    x = 103,721.52

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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.