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Finding the Fourth Proportional to 127,605.70, 176,094.12 and 71,017.08

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Solution

The fourth proportional to 127,605.70, 176,094.12 and 71,017.08 is: 98,002.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,605.70 : 176,094.12 = 71,017.08 : x
  2. Step 2: Convert to fraction form
    127,605.70/176,094.12 = 71,017.08/x
  3. Step 3: Cross multiply
    127,605.70x = 176,094.12 × 71,017.08
  4. Step 4: Simplify right side
    127,605.70x = 12,505,690,207.57
  5. Step 5: Solve for x
    x = 12,505,690,207.57/127,605.70
  6. Step 6: Final answer
    x = 98,002.60

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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.