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Finding the Fourth Proportional to 122,599.80, 183,881.70 and 38,340.36

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Solution

The fourth proportional to 122,599.80, 183,881.70 and 38,340.36 is: 57,504.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,599.80 : 183,881.70 = 38,340.36 : x
  2. Step 2: Convert to fraction form
    122,599.80/183,881.70 = 38,340.36/x
  3. Step 3: Cross multiply
    122,599.80x = 183,881.70 × 38,340.36
  4. Step 4: Simplify right side
    122,599.80x = 7,050,090,575.41
  5. Step 5: Solve for x
    x = 7,050,090,575.41/122,599.80
  6. Step 6: Final answer
    x = 57,504.91

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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.