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Finding the Fourth Proportional to 124,189.52, 186,311.75 and 45,303.48

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Solution

The fourth proportional to 124,189.52, 186,311.75 and 45,303.48 is: 67,965.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,189.52 : 186,311.75 = 45,303.48 : x
  2. Step 2: Convert to fraction form
    124,189.52/186,311.75 = 45,303.48/x
  3. Step 3: Cross multiply
    124,189.52x = 186,311.75 × 45,303.48
  4. Step 4: Simplify right side
    124,189.52x = 8,440,570,413.37
  5. Step 5: Solve for x
    x = 8,440,570,413.37/124,189.52
  6. Step 6: Final answer
    x = 67,965.24

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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.