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Finding the Fourth Proportional to 104,562, 156,754.80 and 45,353.07

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Solution

The fourth proportional to 104,562, 156,754.80 and 45,353.07 is: 67,991.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,562 : 156,754.80 = 45,353.07 : x
  2. Step 2: Convert to fraction form
    104,562/156,754.80 = 45,353.07/x
  3. Step 3: Cross multiply
    104,562x = 156,754.80 × 45,353.07
  4. Step 4: Simplify right side
    104,562x = 7,109,311,417.24
  5. Step 5: Solve for x
    x = 7,109,311,417.24/104,562
  6. Step 6: Final answer
    x = 67,991.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.