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Finding the Fourth Proportional to 298,418.90, 447,710.43 and 88,056.83

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Solution

The fourth proportional to 298,418.90, 447,710.43 and 88,056.83 is: 132,109.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,418.90 : 447,710.43 = 88,056.83 : x
  2. Step 2: Convert to fraction form
    298,418.90/447,710.43 = 88,056.83/x
  3. Step 3: Cross multiply
    298,418.90x = 447,710.43 × 88,056.83
  4. Step 4: Simplify right side
    298,418.90x = 39,423,961,223.74
  5. Step 5: Solve for x
    x = 39,423,961,223.74/298,418.90
  6. Step 6: Final answer
    x = 132,109.46

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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.