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Finding the Fourth Proportional to 124,482.60, 186,723.90 and 108,930.60

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Solution

The fourth proportional to 124,482.60, 186,723.90 and 108,930.60 is: 163,395.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,482.60 : 186,723.90 = 108,930.60 : x
  2. Step 2: Convert to fraction form
    124,482.60/186,723.90 = 108,930.60/x
  3. Step 3: Cross multiply
    124,482.60x = 186,723.90 × 108,930.60
  4. Step 4: Simplify right side
    124,482.60x = 20,339,946,461.34
  5. Step 5: Solve for x
    x = 20,339,946,461.34/124,482.60
  6. Step 6: Final answer
    x = 163,395.90

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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.