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Finding the Fourth Proportional to 78,569.98, 108,437.74 and 44,586.84

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Solution

The fourth proportional to 78,569.98, 108,437.74 and 44,586.84 is: 61,536.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,569.98 : 108,437.74 = 44,586.84 : x
  2. Step 2: Convert to fraction form
    78,569.98/108,437.74 = 44,586.84/x
  3. Step 3: Cross multiply
    78,569.98x = 108,437.74 × 44,586.84
  4. Step 4: Simplify right side
    78,569.98x = 4,834,896,163.34
  5. Step 5: Solve for x
    x = 4,834,896,163.34/78,569.98
  6. Step 6: Final answer
    x = 61,536.18

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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.