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Finding the Fourth Proportional to 104,365.78, 144,023.97 and 56,618.98

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Solution

The fourth proportional to 104,365.78, 144,023.97 and 56,618.98 is: 78,133.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,365.78 : 144,023.97 = 56,618.98 : x
  2. Step 2: Convert to fraction form
    104,365.78/144,023.97 = 56,618.98/x
  3. Step 3: Cross multiply
    104,365.78x = 144,023.97 × 56,618.98
  4. Step 4: Simplify right side
    104,365.78x = 8,154,490,276.95
  5. Step 5: Solve for x
    x = 8,154,490,276.95/104,365.78
  6. Step 6: Final answer
    x = 78,133.75

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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.