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Finding the Fourth Proportional to 88,712.88, 122,424.02 and 48,426.68

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Solution

The fourth proportional to 88,712.88, 122,424.02 and 48,426.68 is: 66,828.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,712.88 : 122,424.02 = 48,426.68 : x
  2. Step 2: Convert to fraction form
    88,712.88/122,424.02 = 48,426.68/x
  3. Step 3: Cross multiply
    88,712.88x = 122,424.02 × 48,426.68
  4. Step 4: Simplify right side
    88,712.88x = 5,928,587,986.60
  5. Step 5: Solve for x
    x = 5,928,587,986.60/88,712.88
  6. Step 6: Final answer
    x = 66,828.94

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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.