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Finding the Fourth Proportional to 88,385, 121,967.66 and 48,098.93

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Solution

The fourth proportional to 88,385, 121,967.66 and 48,098.93 is: 66,374.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,385 : 121,967.66 = 48,098.93 : x
  2. Step 2: Convert to fraction form
    88,385/121,967.66 = 48,098.93/x
  3. Step 3: Cross multiply
    88,385x = 121,967.66 × 48,098.93
  4. Step 4: Simplify right side
    88,385x = 5,866,513,940.60
  5. Step 5: Solve for x
    x = 5,866,513,940.60/88,385
  6. Step 6: Final answer
    x = 66,374.54

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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.