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Finding the Fourth Proportional to 294,678.61, 406,705.39 and 173,849.56

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Solution

The fourth proportional to 294,678.61, 406,705.39 and 173,849.56 is: 239,941.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,678.61 : 406,705.39 = 173,849.56 : x
  2. Step 2: Convert to fraction form
    294,678.61/406,705.39 = 173,849.56/x
  3. Step 3: Cross multiply
    294,678.61x = 406,705.39 × 173,849.56
  4. Step 4: Simplify right side
    294,678.61x = 70,705,551,649.74
  5. Step 5: Solve for x
    x = 70,705,551,649.74/294,678.61
  6. Step 6: Final answer
    x = 239,941.24

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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.