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Finding the Fourth Proportional to 328,875.62, 453,809.86 and 185,627.12

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Solution

The fourth proportional to 328,875.62, 453,809.86 and 185,627.12 is: 256,143.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,875.62 : 453,809.86 = 185,627.12 : x
  2. Step 2: Convert to fraction form
    328,875.62/453,809.86 = 185,627.12/x
  3. Step 3: Cross multiply
    328,875.62x = 453,809.86 × 185,627.12
  4. Step 4: Simplify right side
    328,875.62x = 84,239,414,606.29
  5. Step 5: Solve for x
    x = 84,239,414,606.29/328,875.62
  6. Step 6: Final answer
    x = 256,143.69

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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.