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Finding the Fourth Proportional to 124,466.40, 186,699.60 and 71,103.60

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Solution

The fourth proportional to 124,466.40, 186,699.60 and 71,103.60 is: 106,655.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,466.40 : 186,699.60 = 71,103.60 : x
  2. Step 2: Convert to fraction form
    124,466.40/186,699.60 = 71,103.60/x
  3. Step 3: Cross multiply
    124,466.40x = 186,699.60 × 71,103.60
  4. Step 4: Simplify right side
    124,466.40x = 13,275,013,678.56
  5. Step 5: Solve for x
    x = 13,275,013,678.56/124,466.40
  6. Step 6: Final answer
    x = 106,655.40

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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.