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Finding the Fourth Proportional to 89,112.52, 122,953.62 and 49,368.52

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Solution

The fourth proportional to 89,112.52, 122,953.62 and 49,368.52 is: 68,116.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,112.52 : 122,953.62 = 49,368.52 : x
  2. Step 2: Convert to fraction form
    89,112.52/122,953.62 = 49,368.52/x
  3. Step 3: Cross multiply
    89,112.52x = 122,953.62 × 49,368.52
  4. Step 4: Simplify right side
    89,112.52x = 6,070,038,248.04
  5. Step 5: Solve for x
    x = 6,070,038,248.04/89,112.52
  6. Step 6: Final answer
    x = 68,116.56

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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.