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Finding the Fourth Proportional to 104,657.83, 144,410.28 and 61,645.88

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Solution

The fourth proportional to 104,657.83, 144,410.28 and 61,645.88 is: 85,061.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,657.83 : 144,410.28 = 61,645.88 : x
  2. Step 2: Convert to fraction form
    104,657.83/144,410.28 = 61,645.88/x
  3. Step 3: Cross multiply
    104,657.83x = 144,410.28 × 61,645.88
  4. Step 4: Simplify right side
    104,657.83x = 8,902,299,268.26
  5. Step 5: Solve for x
    x = 8,902,299,268.26/104,657.83
  6. Step 6: Final answer
    x = 85,061.00

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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.