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Finding the Fourth Proportional to 108,465.30, 149,680.96 and 60,719.04

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Solution

The fourth proportional to 108,465.30, 149,680.96 and 60,719.04 is: 83,791.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,465.30 : 149,680.96 = 60,719.04 : x
  2. Step 2: Convert to fraction form
    108,465.30/149,680.96 = 60,719.04/x
  3. Step 3: Cross multiply
    108,465.30x = 149,680.96 × 60,719.04
  4. Step 4: Simplify right side
    108,465.30x = 9,088,484,197.48
  5. Step 5: Solve for x
    x = 9,088,484,197.48/108,465.30
  6. Step 6: Final answer
    x = 83,791.63

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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.