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Finding the Fourth Proportional to 113,228.40, 169,909.80 and 43,114.80

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Solution

The fourth proportional to 113,228.40, 169,909.80 and 43,114.80 is: 64,697.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,228.40 : 169,909.80 = 43,114.80 : x
  2. Step 2: Convert to fraction form
    113,228.40/169,909.80 = 43,114.80/x
  3. Step 3: Cross multiply
    113,228.40x = 169,909.80 × 43,114.80
  4. Step 4: Simplify right side
    113,228.40x = 7,325,627,045.04
  5. Step 5: Solve for x
    x = 7,325,627,045.04/113,228.40
  6. Step 6: Final answer
    x = 64,697.79

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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.