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Finding the Fourth Proportional to 127,363.60, 175,707.25 and 79,533.91

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Solution

The fourth proportional to 127,363.60, 175,707.25 and 79,533.91 is: 109,722.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,363.60 : 175,707.25 = 79,533.91 : x
  2. Step 2: Convert to fraction form
    127,363.60/175,707.25 = 79,533.91/x
  3. Step 3: Cross multiply
    127,363.60x = 175,707.25 × 79,533.91
  4. Step 4: Simplify right side
    127,363.60x = 13,974,684,607.85
  5. Step 5: Solve for x
    x = 13,974,684,607.85/127,363.60
  6. Step 6: Final answer
    x = 109,722.75

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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.