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Finding the Fourth Proportional to 328,783.16, 453,718.86 and 177,876.92

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Solution

The fourth proportional to 328,783.16, 453,718.86 and 177,876.92 is: 245,469.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,783.16 : 453,718.86 = 177,876.92 : x
  2. Step 2: Convert to fraction form
    328,783.16/453,718.86 = 177,876.92/x
  3. Step 3: Cross multiply
    328,783.16x = 453,718.86 × 177,876.92
  4. Step 4: Simplify right side
    328,783.16x = 80,706,113,362.71
  5. Step 5: Solve for x
    x = 80,706,113,362.71/328,783.16
  6. Step 6: Final answer
    x = 245,469.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.