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Finding the Fourth Proportional to 113,488.40, 170,232.60 and 43,358.60

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Solution

The fourth proportional to 113,488.40, 170,232.60 and 43,358.60 is: 65,037.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,488.40 : 170,232.60 = 43,358.60 : x
  2. Step 2: Convert to fraction form
    113,488.40/170,232.60 = 43,358.60/x
  3. Step 3: Cross multiply
    113,488.40x = 170,232.60 × 43,358.60
  4. Step 4: Simplify right side
    113,488.40x = 7,381,047,210.36
  5. Step 5: Solve for x
    x = 7,381,047,210.36/113,488.40
  6. Step 6: Final answer
    x = 65,037.90

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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.