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Finding the Fourth Proportional to 74,232.93, 111,314.76 and 21,631.93

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Solution

The fourth proportional to 74,232.93, 111,314.76 and 21,631.93 is: 32,437.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,232.93 : 111,314.76 = 21,631.93 : x
  2. Step 2: Convert to fraction form
    74,232.93/111,314.76 = 21,631.93/x
  3. Step 3: Cross multiply
    74,232.93x = 111,314.76 × 21,631.93
  4. Step 4: Simplify right side
    74,232.93x = 2,407,953,096.29
  5. Step 5: Solve for x
    x = 2,407,953,096.29/74,232.93
  6. Step 6: Final answer
    x = 32,437.80

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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.