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Finding the Fourth Proportional to 121,805.60, 182,708.40 and 33,070.10

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Solution

The fourth proportional to 121,805.60, 182,708.40 and 33,070.10 is: 49,605.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,805.60 : 182,708.40 = 33,070.10 : x
  2. Step 2: Convert to fraction form
    121,805.60/182,708.40 = 33,070.10/x
  3. Step 3: Cross multiply
    121,805.60x = 182,708.40 × 33,070.10
  4. Step 4: Simplify right side
    121,805.60x = 6,042,185,058.84
  5. Step 5: Solve for x
    x = 6,042,185,058.84/121,805.60
  6. Step 6: Final answer
    x = 49,605.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.