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Finding the Fourth Proportional to 88,262, 121,801.56 and 48,518

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Solution

The fourth proportional to 88,262, 121,801.56 and 48,518 is: 66,954.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,262 : 121,801.56 = 48,518 : x
  2. Step 2: Convert to fraction form
    88,262/121,801.56 = 48,518/x
  3. Step 3: Cross multiply
    88,262x = 121,801.56 × 48,518
  4. Step 4: Simplify right side
    88,262x = 5,909,568,088.08
  5. Step 5: Solve for x
    x = 5,909,568,088.08/88,262
  6. Step 6: Final answer
    x = 66,954.84

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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.