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Finding the Fourth Proportional to 322,897.12, 484,363.88 and 98,264.84

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Solution

The fourth proportional to 322,897.12, 484,363.88 and 98,264.84 is: 147,402.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,897.12 : 484,363.88 = 98,264.84 : x
  2. Step 2: Convert to fraction form
    322,897.12/484,363.88 = 98,264.84/x
  3. Step 3: Cross multiply
    322,897.12x = 484,363.88 × 98,264.84
  4. Step 4: Simplify right side
    322,897.12x = 47,595,939,169.98
  5. Step 5: Solve for x
    x = 47,595,939,169.98/322,897.12
  6. Step 6: Final answer
    x = 147,402.80

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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.