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Finding the Fourth Proportional to 114,626.40, 172,069.20 and 88,447.20

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Solution

The fourth proportional to 114,626.40, 172,069.20 and 88,447.20 is: 132,770.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,626.40 : 172,069.20 = 88,447.20 : x
  2. Step 2: Convert to fraction form
    114,626.40/172,069.20 = 88,447.20/x
  3. Step 3: Cross multiply
    114,626.40x = 172,069.20 × 88,447.20
  4. Step 4: Simplify right side
    114,626.40x = 15,219,038,946.24
  5. Step 5: Solve for x
    x = 15,219,038,946.24/114,626.40
  6. Step 6: Final answer
    x = 132,770.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.