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Finding the Fourth Proportional to 299,008.79, 448,587 and 88,646.72

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Solution

The fourth proportional to 299,008.79, 448,587 and 88,646.72 is: 132,991.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,008.79 : 448,587 = 88,646.72 : x
  2. Step 2: Convert to fraction form
    299,008.79/448,587 = 88,646.72/x
  3. Step 3: Cross multiply
    299,008.79x = 448,587 × 88,646.72
  4. Step 4: Simplify right side
    299,008.79x = 39,765,763,941.71
  5. Step 5: Solve for x
    x = 39,765,763,941.71/299,008.79
  6. Step 6: Final answer
    x = 132,991.96

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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.