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Finding the Fourth Proportional to 108,854.15, 163,344.29 and 45,668.68

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Solution

The fourth proportional to 108,854.15, 163,344.29 and 45,668.68 is: 68,529.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,854.15 : 163,344.29 = 45,668.68 : x
  2. Step 2: Convert to fraction form
    108,854.15/163,344.29 = 45,668.68/x
  3. Step 3: Cross multiply
    108,854.15x = 163,344.29 × 45,668.68
  4. Step 4: Simplify right side
    108,854.15x = 7,459,717,473.13
  5. Step 5: Solve for x
    x = 7,459,717,473.13/108,854.15
  6. Step 6: Final answer
    x = 68,529.48

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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.