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Finding the Fourth Proportional to 104,370.36, 144,030.78 and 61,963.80

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Solution

The fourth proportional to 104,370.36, 144,030.78 and 61,963.80 is: 85,509.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,370.36 : 144,030.78 = 61,963.80 : x
  2. Step 2: Convert to fraction form
    104,370.36/144,030.78 = 61,963.80/x
  3. Step 3: Cross multiply
    104,370.36x = 144,030.78 × 61,963.80
  4. Step 4: Simplify right side
    104,370.36x = 8,924,694,445.76
  5. Step 5: Solve for x
    x = 8,924,694,445.76/104,370.36
  6. Step 6: Final answer
    x = 85,509.86

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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.