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Finding the Fourth Proportional to 98,445.38, 135,854.62 and 53,733.38

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Solution

The fourth proportional to 98,445.38, 135,854.62 and 53,733.38 is: 74,152.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,445.38 : 135,854.62 = 53,733.38 : x
  2. Step 2: Convert to fraction form
    98,445.38/135,854.62 = 53,733.38/x
  3. Step 3: Cross multiply
    98,445.38x = 135,854.62 × 53,733.38
  4. Step 4: Simplify right side
    98,445.38x = 7,299,927,107.61
  5. Step 5: Solve for x
    x = 7,299,927,107.61/98,445.38
  6. Step 6: Final answer
    x = 74,152.06

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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.