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Finding the Fourth Proportional to 109,246.59, 150,759.90 and 61,500.06

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Solution

The fourth proportional to 109,246.59, 150,759.90 and 61,500.06 is: 84,869.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,246.59 : 150,759.90 = 61,500.06 : x
  2. Step 2: Convert to fraction form
    109,246.59/150,759.90 = 61,500.06/x
  3. Step 3: Cross multiply
    109,246.59x = 150,759.90 × 61,500.06
  4. Step 4: Simplify right side
    109,246.59x = 9,271,742,895.59
  5. Step 5: Solve for x
    x = 9,271,742,895.59/109,246.59
  6. Step 6: Final answer
    x = 84,869.86

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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.