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Finding the Fourth Proportional to 117,812.40, 176,718.60 and 61,630.80

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Solution

The fourth proportional to 117,812.40, 176,718.60 and 61,630.80 is: 92,446.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,812.40 : 176,718.60 = 61,630.80 : x
  2. Step 2: Convert to fraction form
    117,812.40/176,718.60 = 61,630.80/x
  3. Step 3: Cross multiply
    117,812.40x = 176,718.60 × 61,630.80
  4. Step 4: Simplify right side
    117,812.40x = 10,891,308,692.88
  5. Step 5: Solve for x
    x = 10,891,308,692.88/117,812.40
  6. Step 6: Final answer
    x = 92,446.20

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1.5x scale

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.