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Finding the Fourth Proportional to 124,424.40, 186,636.60 and 41,318.40

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Solution

The fourth proportional to 124,424.40, 186,636.60 and 41,318.40 is: 61,977.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,424.40 : 186,636.60 = 41,318.40 : x
  2. Step 2: Convert to fraction form
    124,424.40/186,636.60 = 41,318.40/x
  3. Step 3: Cross multiply
    124,424.40x = 186,636.60 × 41,318.40
  4. Step 4: Simplify right side
    124,424.40x = 7,711,525,693.44
  5. Step 5: Solve for x
    x = 7,711,525,693.44/124,424.40
  6. Step 6: Final answer
    x = 61,977.60

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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.