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Finding the Fourth Proportional to 127,675.69, 176,193.68 and 71,088.28

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Solution

The fourth proportional to 127,675.69, 176,193.68 and 71,088.28 is: 98,102.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,675.69 : 176,193.68 = 71,088.28 : x
  2. Step 2: Convert to fraction form
    127,675.69/176,193.68 = 71,088.28/x
  3. Step 3: Cross multiply
    127,675.69x = 176,193.68 × 71,088.28
  4. Step 4: Simplify right side
    127,675.69x = 12,525,304,862.14
  5. Step 5: Solve for x
    x = 12,525,304,862.14/127,675.69
  6. Step 6: Final answer
    x = 98,102.51

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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.