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Finding the Fourth Proportional to 122,600.67, 183,896 and 42,656.93

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Solution

The fourth proportional to 122,600.67, 183,896 and 42,656.93 is: 63,983.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,600.67 : 183,896 = 42,656.93 : x
  2. Step 2: Convert to fraction form
    122,600.67/183,896 = 42,656.93/x
  3. Step 3: Cross multiply
    122,600.67x = 183,896 × 42,656.93
  4. Step 4: Simplify right side
    122,600.67x = 7,844,438,799.28
  5. Step 5: Solve for x
    x = 7,844,438,799.28/122,600.67
  6. Step 6: Final answer
    x = 63,983.65

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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.