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Finding the Fourth Proportional to 74,597.81, 111,895.62 and 18,437.93

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Solution

The fourth proportional to 74,597.81, 111,895.62 and 18,437.93 is: 27,656.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,597.81 : 111,895.62 = 18,437.93 : x
  2. Step 2: Convert to fraction form
    74,597.81/111,895.62 = 18,437.93/x
  3. Step 3: Cross multiply
    74,597.81x = 111,895.62 × 18,437.93
  4. Step 4: Simplify right side
    74,597.81x = 2,063,122,957.20
  5. Step 5: Solve for x
    x = 2,063,122,957.20/74,597.81
  6. Step 6: Final answer
    x = 27,656.61

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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.