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Finding the Fourth Proportional to 341,872.07, 512,808.47 and 89,152.34

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Solution

The fourth proportional to 341,872.07, 512,808.47 and 89,152.34 is: 133,728.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,872.07 : 512,808.47 = 89,152.34 : x
  2. Step 2: Convert to fraction form
    341,872.07/512,808.47 = 89,152.34/x
  3. Step 3: Cross multiply
    341,872.07x = 512,808.47 × 89,152.34
  4. Step 4: Simplify right side
    341,872.07x = 45,718,072,062.52
  5. Step 5: Solve for x
    x = 45,718,072,062.52/341,872.07
  6. Step 6: Final answer
    x = 133,728.60

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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.