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Finding the Fourth Proportional to 295,272.60, 442,836.90 and 84,888.60

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Solution

The fourth proportional to 295,272.60, 442,836.90 and 84,888.60 is: 127,312.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,272.60 : 442,836.90 = 84,888.60 : x
  2. Step 2: Convert to fraction form
    295,272.60/442,836.90 = 84,888.60/x
  3. Step 3: Cross multiply
    295,272.60x = 442,836.90 × 84,888.60
  4. Step 4: Simplify right side
    295,272.60x = 37,591,804,469.34
  5. Step 5: Solve for x
    x = 37,591,804,469.34/295,272.60
  6. Step 6: Final answer
    x = 127,312.20

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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.