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Finding the Fourth Proportional to 124,427.40, 186,641.10 and 41,321.40

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Solution

The fourth proportional to 124,427.40, 186,641.10 and 41,321.40 is: 61,982.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,427.40 : 186,641.10 = 41,321.40 : x
  2. Step 2: Convert to fraction form
    124,427.40/186,641.10 = 41,321.40/x
  3. Step 3: Cross multiply
    124,427.40x = 186,641.10 × 41,321.40
  4. Step 4: Simplify right side
    124,427.40x = 7,712,271,549.54
  5. Step 5: Solve for x
    x = 7,712,271,549.54/124,427.40
  6. Step 6: Final answer
    x = 61,982.10

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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.