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Finding the Fourth Proportional to 127,706.52, 176,050.88 and 89,347.23

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Solution

The fourth proportional to 127,706.52, 176,050.88 and 89,347.23 is: 123,170.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,706.52 : 176,050.88 = 89,347.23 : x
  2. Step 2: Convert to fraction form
    127,706.52/176,050.88 = 89,347.23/x
  3. Step 3: Cross multiply
    127,706.52x = 176,050.88 × 89,347.23
  4. Step 4: Simplify right side
    127,706.52x = 15,729,657,810.18
  5. Step 5: Solve for x
    x = 15,729,657,810.18/127,706.52
  6. Step 6: Final answer
    x = 123,170.36

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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.