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Finding the Fourth Proportional to 75,900.80, 113,851.20 and 23,312.90

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Solution

The fourth proportional to 75,900.80, 113,851.20 and 23,312.90 is: 34,969.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,900.80 : 113,851.20 = 23,312.90 : x
  2. Step 2: Convert to fraction form
    75,900.80/113,851.20 = 23,312.90/x
  3. Step 3: Cross multiply
    75,900.80x = 113,851.20 × 23,312.90
  4. Step 4: Simplify right side
    75,900.80x = 2,654,201,640.48
  5. Step 5: Solve for x
    x = 2,654,201,640.48/75,900.80
  6. Step 6: Final answer
    x = 34,969.35

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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.