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Finding the Fourth Proportional to 104,338.71, 143,986.71 and 56,592.11

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Solution

The fourth proportional to 104,338.71, 143,986.71 and 56,592.11 is: 78,096.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,338.71 : 143,986.71 = 56,592.11 : x
  2. Step 2: Convert to fraction form
    104,338.71/143,986.71 = 56,592.11/x
  3. Step 3: Cross multiply
    104,338.71x = 143,986.71 × 56,592.11
  4. Step 4: Simplify right side
    104,338.71x = 8,148,511,010.92
  5. Step 5: Solve for x
    x = 8,148,511,010.92/104,338.71
  6. Step 6: Final answer
    x = 78,096.72

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1.5x scale

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.