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Finding the Fourth Proportional to 104,253.75, 143,870.18 and 56,506.95

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Solution

The fourth proportional to 104,253.75, 143,870.18 and 56,506.95 is: 77,979.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,253.75 : 143,870.18 = 56,506.95 : x
  2. Step 2: Convert to fraction form
    104,253.75/143,870.18 = 56,506.95/x
  3. Step 3: Cross multiply
    104,253.75x = 143,870.18 × 56,506.95
  4. Step 4: Simplify right side
    104,253.75x = 8,129,664,785.22
  5. Step 5: Solve for x
    x = 8,129,664,785.22/104,253.75
  6. Step 6: Final answer
    x = 77,979.59

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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.