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Finding the Fourth Proportional to 71,856.99, 99,155.13 and 44,257.26

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Solution

The fourth proportional to 71,856.99, 99,155.13 and 44,257.26 is: 61,070.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,856.99 : 99,155.13 = 44,257.26 : x
  2. Step 2: Convert to fraction form
    71,856.99/99,155.13 = 44,257.26/x
  3. Step 3: Cross multiply
    71,856.99x = 99,155.13 × 44,257.26
  4. Step 4: Simplify right side
    71,856.99x = 4,388,334,368.74
  5. Step 5: Solve for x
    x = 4,388,334,368.74/71,856.99
  6. Step 6: Final answer
    x = 61,070.39

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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.