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Finding the Fourth Proportional to 104,717.20, 157,075.80 and 75,192.70

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Solution

The fourth proportional to 104,717.20, 157,075.80 and 75,192.70 is: 112,789.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,717.20 : 157,075.80 = 75,192.70 : x
  2. Step 2: Convert to fraction form
    104,717.20/157,075.80 = 75,192.70/x
  3. Step 3: Cross multiply
    104,717.20x = 157,075.80 × 75,192.70
  4. Step 4: Simplify right side
    104,717.20x = 11,810,953,506.66
  5. Step 5: Solve for x
    x = 11,810,953,506.66/104,717.20
  6. Step 6: Final answer
    x = 112,789.05

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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.