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Finding the Fourth Proportional to 288,555.74, 432,880.12 and 88,876.04

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Solution

The fourth proportional to 288,555.74, 432,880.12 and 88,876.04 is: 133,328.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,555.74 : 432,880.12 = 88,876.04 : x
  2. Step 2: Convert to fraction form
    288,555.74/432,880.12 = 88,876.04/x
  3. Step 3: Cross multiply
    288,555.74x = 432,880.12 × 88,876.04
  4. Step 4: Simplify right side
    288,555.74x = 38,472,669,056.98
  5. Step 5: Solve for x
    x = 38,472,669,056.98/288,555.74
  6. Step 6: Final answer
    x = 133,328.38

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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.