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Finding the Fourth Proportional to 298,767.69, 448,153.16 and 88,407.45

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Solution

The fourth proportional to 298,767.69, 448,153.16 and 88,407.45 is: 132,611.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,767.69 : 448,153.16 = 88,407.45 : x
  2. Step 2: Convert to fraction form
    298,767.69/448,153.16 = 88,407.45/x
  3. Step 3: Cross multiply
    298,767.69x = 448,153.16 × 88,407.45
  4. Step 4: Simplify right side
    298,767.69x = 39,620,077,643.00
  5. Step 5: Solve for x
    x = 39,620,077,643.00/298,767.69
  6. Step 6: Final answer
    x = 132,611.65

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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.