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Finding the Fourth Proportional to 74,365.96, 111,520.86 and 29,981.32

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Solution

The fourth proportional to 74,365.96, 111,520.86 and 29,981.32 is: 44,960.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,365.96 : 111,520.86 = 29,981.32 : x
  2. Step 2: Convert to fraction form
    74,365.96/111,520.86 = 29,981.32/x
  3. Step 3: Cross multiply
    74,365.96x = 111,520.86 × 29,981.32
  4. Step 4: Simplify right side
    74,365.96x = 3,343,542,590.34
  5. Step 5: Solve for x
    x = 3,343,542,590.34/74,365.96
  6. Step 6: Final answer
    x = 44,960.66

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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.