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Finding the Fourth Proportional to 297,994.52, 447,018.78 and 98,315.48

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Solution

The fourth proportional to 297,994.52, 447,018.78 and 98,315.48 is: 147,482.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,994.52 : 447,018.78 = 98,315.48 : x
  2. Step 2: Convert to fraction form
    297,994.52/447,018.78 = 98,315.48/x
  3. Step 3: Cross multiply
    297,994.52x = 447,018.78 × 98,315.48
  4. Step 4: Simplify right side
    297,994.52x = 43,948,865,924.71
  5. Step 5: Solve for x
    x = 43,948,865,924.71/297,994.52
  6. Step 6: Final answer
    x = 147,482.13

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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.