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Finding the Fourth Proportional to 127,133.12, 175,452 and 70,544.64

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Solution

The fourth proportional to 127,133.12, 175,452 and 70,544.64 is: 97,356.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,133.12 : 175,452 = 70,544.64 : x
  2. Step 2: Convert to fraction form
    127,133.12/175,452 = 70,544.64/x
  3. Step 3: Cross multiply
    127,133.12x = 175,452 × 70,544.64
  4. Step 4: Simplify right side
    127,133.12x = 12,377,198,177.28
  5. Step 5: Solve for x
    x = 12,377,198,177.28/127,133.12
  6. Step 6: Final answer
    x = 97,356.21

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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.