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Finding the Fourth Proportional to 88,407.69, 122,012.99 and 49,651.87

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Solution

The fourth proportional to 88,407.69, 122,012.99 and 49,651.87 is: 68,525.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,407.69 : 122,012.99 = 49,651.87 : x
  2. Step 2: Convert to fraction form
    88,407.69/122,012.99 = 49,651.87/x
  3. Step 3: Cross multiply
    88,407.69x = 122,012.99 × 49,651.87
  4. Step 4: Simplify right side
    88,407.69x = 6,058,172,688.63
  5. Step 5: Solve for x
    x = 6,058,172,688.63/88,407.69
  6. Step 6: Final answer
    x = 68,525.40

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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.