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Finding the Fourth Proportional to 104,104.95, 143,663.12 and 56,357.88

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Solution

The fourth proportional to 104,104.95, 143,663.12 and 56,357.88 is: 77,772.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,104.95 : 143,663.12 = 56,357.88 : x
  2. Step 2: Convert to fraction form
    104,104.95/143,663.12 = 56,357.88/x
  3. Step 3: Cross multiply
    104,104.95x = 143,663.12 × 56,357.88
  4. Step 4: Simplify right side
    104,104.95x = 8,096,548,595.60
  5. Step 5: Solve for x
    x = 8,096,548,595.60/104,104.95
  6. Step 6: Final answer
    x = 77,772.95

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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.