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Finding the Fourth Proportional to 104,041.84, 156,085.98 and 40,868.08

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Solution

The fourth proportional to 104,041.84, 156,085.98 and 40,868.08 is: 61,311.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,041.84 : 156,085.98 = 40,868.08 : x
  2. Step 2: Convert to fraction form
    104,041.84/156,085.98 = 40,868.08/x
  3. Step 3: Cross multiply
    104,041.84x = 156,085.98 × 40,868.08
  4. Step 4: Simplify right side
    104,041.84x = 6,378,934,317.52
  5. Step 5: Solve for x
    x = 6,378,934,317.52/104,041.84
  6. Step 6: Final answer
    x = 61,311.24

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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.