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Finding the Fourth Proportional to 88,212, 121,740.24 and 48,475.68

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Solution

The fourth proportional to 88,212, 121,740.24 and 48,475.68 is: 66,900.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,212 : 121,740.24 = 48,475.68 : x
  2. Step 2: Convert to fraction form
    88,212/121,740.24 = 48,475.68/x
  3. Step 3: Cross multiply
    88,212x = 121,740.24 × 48,475.68
  4. Step 4: Simplify right side
    88,212x = 5,901,440,917.36
  5. Step 5: Solve for x
    x = 5,901,440,917.36/88,212
  6. Step 6: Final answer
    x = 66,900.66

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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.