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Finding the Fourth Proportional to 127,177.48, 175,473.30 and 70,574.68

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Solution

The fourth proportional to 127,177.48, 175,473.30 and 70,574.68 is: 97,375.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,177.48 : 175,473.30 = 70,574.68 : x
  2. Step 2: Convert to fraction form
    127,177.48/175,473.30 = 70,574.68/x
  3. Step 3: Cross multiply
    127,177.48x = 175,473.30 × 70,574.68
  4. Step 4: Simplify right side
    127,177.48x = 12,383,971,996.04
  5. Step 5: Solve for x
    x = 12,383,971,996.04/127,177.48
  6. Step 6: Final answer
    x = 97,375.51

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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.