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Finding the Fourth Proportional to 117,002.40, 175,503.60 and 69,763.20

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Solution

The fourth proportional to 117,002.40, 175,503.60 and 69,763.20 is: 104,644.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,002.40 : 175,503.60 = 69,763.20 : x
  2. Step 2: Convert to fraction form
    117,002.40/175,503.60 = 69,763.20/x
  3. Step 3: Cross multiply
    117,002.40x = 175,503.60 × 69,763.20
  4. Step 4: Simplify right side
    117,002.40x = 12,243,692,747.52
  5. Step 5: Solve for x
    x = 12,243,692,747.52/117,002.40
  6. Step 6: Final answer
    x = 104,644.80

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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.