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Finding the Fourth Proportional to 88,717.86, 122,430.86 and 48,431.64

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Solution

The fourth proportional to 88,717.86, 122,430.86 and 48,431.64 is: 66,835.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,717.86 : 122,430.86 = 48,431.64 : x
  2. Step 2: Convert to fraction form
    88,717.86/122,430.86 = 48,431.64/x
  3. Step 3: Cross multiply
    88,717.86x = 122,430.86 × 48,431.64
  4. Step 4: Simplify right side
    88,717.86x = 5,929,527,094.25
  5. Step 5: Solve for x
    x = 5,929,527,094.25/88,717.86
  6. Step 6: Final answer
    x = 66,835.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.