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Finding the Fourth Proportional to 127,158.70, 175,475.52 and 69,797.95

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Solution

The fourth proportional to 127,158.70, 175,475.52 and 69,797.95 is: 96,319.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,158.70 : 175,475.52 = 69,797.95 : x
  2. Step 2: Convert to fraction form
    127,158.70/175,475.52 = 69,797.95/x
  3. Step 3: Cross multiply
    127,158.70x = 175,475.52 × 69,797.95
  4. Step 4: Simplify right side
    127,158.70x = 12,247,831,571.18
  5. Step 5: Solve for x
    x = 12,247,831,571.18/127,158.70
  6. Step 6: Final answer
    x = 96,319.26

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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.