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Finding the Fourth Proportional to 77,356.40, 115,948.20 and 44,092.40

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Solution

The fourth proportional to 77,356.40, 115,948.20 and 44,092.40 is: 66,089.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,356.40 : 115,948.20 = 44,092.40 : x
  2. Step 2: Convert to fraction form
    77,356.40/115,948.20 = 44,092.40/x
  3. Step 3: Cross multiply
    77,356.40x = 115,948.20 × 44,092.40
  4. Step 4: Simplify right side
    77,356.40x = 5,112,434,413.68
  5. Step 5: Solve for x
    x = 5,112,434,413.68/77,356.40
  6. Step 6: Final answer
    x = 66,089.35

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1.5x scale

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.