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Finding the Fourth Proportional to 108,307.85, 149,478.75 and 60,563.84

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Solution

The fourth proportional to 108,307.85, 149,478.75 and 60,563.84 is: 83,585.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,307.85 : 149,478.75 = 60,563.84 : x
  2. Step 2: Convert to fraction form
    108,307.85/149,478.75 = 60,563.84/x
  3. Step 3: Cross multiply
    108,307.85x = 149,478.75 × 60,563.84
  4. Step 4: Simplify right side
    108,307.85x = 9,053,006,351.01
  5. Step 5: Solve for x
    x = 9,053,006,351.01/108,307.85
  6. Step 6: Final answer
    x = 83,585.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.