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Finding the Fourth Proportional to 103,888.86, 155,859.21 and 41,557.74

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Solution

The fourth proportional to 103,888.86, 155,859.21 and 41,557.74 is: 62,346.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,888.86 : 155,859.21 = 41,557.74 : x
  2. Step 2: Convert to fraction form
    103,888.86/155,859.21 = 41,557.74/x
  3. Step 3: Cross multiply
    103,888.86x = 155,859.21 × 41,557.74
  4. Step 4: Simplify right side
    103,888.86x = 6,477,156,525.79
  5. Step 5: Solve for x
    x = 6,477,156,525.79/103,888.86
  6. Step 6: Final answer
    x = 62,346.98

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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.