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Finding the Fourth Proportional to 124,485.60, 186,728.40 and 41,379.60

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Solution

The fourth proportional to 124,485.60, 186,728.40 and 41,379.60 is: 62,069.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,485.60 : 186,728.40 = 41,379.60 : x
  2. Step 2: Convert to fraction form
    124,485.60/186,728.40 = 41,379.60/x
  3. Step 3: Cross multiply
    124,485.60x = 186,728.40 × 41,379.60
  4. Step 4: Simplify right side
    124,485.60x = 7,726,746,500.64
  5. Step 5: Solve for x
    x = 7,726,746,500.64/124,485.60
  6. Step 6: Final answer
    x = 62,069.40

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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.