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Finding the Fourth Proportional to 98,435.67, 147,672.99 and 36,106.71

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Solution

The fourth proportional to 98,435.67, 147,672.99 and 36,106.71 is: 54,167.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,435.67 : 147,672.99 = 36,106.71 : x
  2. Step 2: Convert to fraction form
    98,435.67/147,672.99 = 36,106.71/x
  3. Step 3: Cross multiply
    98,435.67x = 147,672.99 × 36,106.71
  4. Step 4: Simplify right side
    98,435.67x = 5,331,985,824.76
  5. Step 5: Solve for x
    x = 5,331,985,824.76/98,435.67
  6. Step 6: Final answer
    x = 54,167.21

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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.