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Finding the Fourth Proportional to 88,182, 121,698.84 and 48,445.68

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Solution

The fourth proportional to 88,182, 121,698.84 and 48,445.68 is: 66,859.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,182 : 121,698.84 = 48,445.68 : x
  2. Step 2: Convert to fraction form
    88,182/121,698.84 = 48,445.68/x
  3. Step 3: Cross multiply
    88,182x = 121,698.84 × 48,445.68
  4. Step 4: Simplify right side
    88,182x = 5,895,783,059.01
  5. Step 5: Solve for x
    x = 5,895,783,059.01/88,182
  6. Step 6: Final answer
    x = 66,859.26

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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.