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Finding the Fourth Proportional to 108,465.35, 149,680.71 and 60,718.68

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Solution

The fourth proportional to 108,465.35, 149,680.71 and 60,718.68 is: 83,790.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,465.35 : 149,680.71 = 60,718.68 : x
  2. Step 2: Convert to fraction form
    108,465.35/149,680.71 = 60,718.68/x
  3. Step 3: Cross multiply
    108,465.35x = 149,680.71 × 60,718.68
  4. Step 4: Simplify right side
    108,465.35x = 9,088,415,132.66
  5. Step 5: Solve for x
    x = 9,088,415,132.66/108,465.35
  6. Step 6: Final answer
    x = 83,790.96

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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.