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Finding the Fourth Proportional to 284,048.73, 392,129.30 and 176,653.37

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Solution

The fourth proportional to 284,048.73, 392,129.30 and 176,653.37 is: 243,869.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,048.73 : 392,129.30 = 176,653.37 : x
  2. Step 2: Convert to fraction form
    284,048.73/392,129.30 = 176,653.37/x
  3. Step 3: Cross multiply
    284,048.73x = 392,129.30 × 176,653.37
  4. Step 4: Simplify right side
    284,048.73x = 69,270,959,476.83
  5. Step 5: Solve for x
    x = 69,270,959,476.83/284,048.73
  6. Step 6: Final answer
    x = 243,869.98

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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.