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Finding the Fourth Proportional to 299,248.90, 448,938.15 and 88,908.10

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Solution

The fourth proportional to 299,248.90, 448,938.15 and 88,908.10 is: 133,381.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,248.90 : 448,938.15 = 88,908.10 : x
  2. Step 2: Convert to fraction form
    299,248.90/448,938.15 = 88,908.10/x
  3. Step 3: Cross multiply
    299,248.90x = 448,938.15 × 88,908.10
  4. Step 4: Simplify right side
    299,248.90x = 39,914,237,934.02
  5. Step 5: Solve for x
    x = 39,914,237,934.02/299,248.90
  6. Step 6: Final answer
    x = 133,381.40

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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.