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Finding the Fourth Proportional to 104,298.66, 143,932.02 and 56,551.95

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Solution

The fourth proportional to 104,298.66, 143,932.02 and 56,551.95 is: 78,041.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,298.66 : 143,932.02 = 56,551.95 : x
  2. Step 2: Convert to fraction form
    104,298.66/143,932.02 = 56,551.95/x
  3. Step 3: Cross multiply
    104,298.66x = 143,932.02 × 56,551.95
  4. Step 4: Simplify right side
    104,298.66x = 8,139,636,398.44
  5. Step 5: Solve for x
    x = 8,139,636,398.44/104,298.66
  6. Step 6: Final answer
    x = 78,041.62

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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.