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Finding the Fourth Proportional to 351,363.71, 526,986.23 and 98,586.20

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Solution

The fourth proportional to 351,363.71, 526,986.23 and 98,586.20 is: 147,862.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,363.71 : 526,986.23 = 98,586.20 : x
  2. Step 2: Convert to fraction form
    351,363.71/526,986.23 = 98,586.20/x
  3. Step 3: Cross multiply
    351,363.71x = 526,986.23 × 98,586.20
  4. Step 4: Simplify right side
    351,363.71x = 51,953,566,740.16
  5. Step 5: Solve for x
    x = 51,953,566,740.16/351,363.71
  6. Step 6: Final answer
    x = 147,862.64

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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.