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Finding the Fourth Proportional to 98,649.54, 147,865.37 and 62,998.65

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Solution

The fourth proportional to 98,649.54, 147,865.37 and 62,998.65 is: 94,428.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,649.54 : 147,865.37 = 62,998.65 : x
  2. Step 2: Convert to fraction form
    98,649.54/147,865.37 = 62,998.65/x
  3. Step 3: Cross multiply
    98,649.54x = 147,865.37 × 62,998.65
  4. Step 4: Simplify right side
    98,649.54x = 9,315,318,376.76
  5. Step 5: Solve for x
    x = 9,315,318,376.76/98,649.54
  6. Step 6: Final answer
    x = 94,428.40

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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.