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Finding the Fourth Proportional to 124,493.60, 186,740.40 and 108,941.60

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Solution

The fourth proportional to 124,493.60, 186,740.40 and 108,941.60 is: 163,412.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,493.60 : 186,740.40 = 108,941.60 : x
  2. Step 2: Convert to fraction form
    124,493.60/186,740.40 = 108,941.60/x
  3. Step 3: Cross multiply
    124,493.60x = 186,740.40 × 108,941.60
  4. Step 4: Simplify right side
    124,493.60x = 20,343,797,960.64
  5. Step 5: Solve for x
    x = 20,343,797,960.64/124,493.60
  6. Step 6: Final answer
    x = 163,412.40

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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.