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Finding the Fourth Proportional to 202,937.40, 304,406.10 and 84,693.60

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Solution

The fourth proportional to 202,937.40, 304,406.10 and 84,693.60 is: 127,040.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,937.40 : 304,406.10 = 84,693.60 : x
  2. Step 2: Convert to fraction form
    202,937.40/304,406.10 = 84,693.60/x
  3. Step 3: Cross multiply
    202,937.40x = 304,406.10 × 84,693.60
  4. Step 4: Simplify right side
    202,937.40x = 25,781,248,470.96
  5. Step 5: Solve for x
    x = 25,781,248,470.96/202,937.40
  6. Step 6: Final answer
    x = 127,040.40

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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.