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Finding the Fourth Proportional to 117,375.80, 176,063.70 and 42,531.80

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Solution

The fourth proportional to 117,375.80, 176,063.70 and 42,531.80 is: 63,797.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,375.80 : 176,063.70 = 42,531.80 : x
  2. Step 2: Convert to fraction form
    117,375.80/176,063.70 = 42,531.80/x
  3. Step 3: Cross multiply
    117,375.80x = 176,063.70 × 42,531.80
  4. Step 4: Simplify right side
    117,375.80x = 7,488,306,075.66
  5. Step 5: Solve for x
    x = 7,488,306,075.66/117,375.80
  6. Step 6: Final answer
    x = 63,797.70

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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.