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Finding the Fourth Proportional to 113,236.40, 169,854.12 and 28,996.40

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Solution

The fourth proportional to 113,236.40, 169,854.12 and 28,996.40 is: 43,494.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,236.40 : 169,854.12 = 28,996.40 : x
  2. Step 2: Convert to fraction form
    113,236.40/169,854.12 = 28,996.40/x
  3. Step 3: Cross multiply
    113,236.40x = 169,854.12 × 28,996.40
  4. Step 4: Simplify right side
    113,236.40x = 4,925,158,005.17
  5. Step 5: Solve for x
    x = 4,925,158,005.17/113,236.40
  6. Step 6: Final answer
    x = 43,494.48

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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.