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Finding the Fourth Proportional to 109,491.93, 151,098.71 and 59,190.93

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Solution

The fourth proportional to 109,491.93, 151,098.71 and 59,190.93 is: 81,683.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,491.93 : 151,098.71 = 59,190.93 : x
  2. Step 2: Convert to fraction form
    109,491.93/151,098.71 = 59,190.93/x
  3. Step 3: Cross multiply
    109,491.93x = 151,098.71 × 59,190.93
  4. Step 4: Simplify right side
    109,491.93x = 8,943,672,870.75
  5. Step 5: Solve for x
    x = 8,943,672,870.75/109,491.93
  6. Step 6: Final answer
    x = 81,683.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.