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Finding the Fourth Proportional to 122,473.86, 183,655.38 and 43,590.18

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Solution

The fourth proportional to 122,473.86, 183,655.38 and 43,590.18 is: 65,365.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,473.86 : 183,655.38 = 43,590.18 : x
  2. Step 2: Convert to fraction form
    122,473.86/183,655.38 = 43,590.18/x
  3. Step 3: Cross multiply
    122,473.86x = 183,655.38 × 43,590.18
  4. Step 4: Simplify right side
    122,473.86x = 8,005,571,072.17
  5. Step 5: Solve for x
    x = 8,005,571,072.17/122,473.86
  6. Step 6: Final answer
    x = 65,365.55

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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.