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Finding the Fourth Proportional to 346,687.18, 519,142.98 and 239,923.31

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Solution

The fourth proportional to 346,687.18, 519,142.98 and 239,923.31 is: 359,270.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,687.18 : 519,142.98 = 239,923.31 : x
  2. Step 2: Convert to fraction form
    346,687.18/519,142.98 = 239,923.31/x
  3. Step 3: Cross multiply
    346,687.18x = 519,142.98 × 239,923.31
  4. Step 4: Simplify right side
    346,687.18x = 124,554,502,124.86
  5. Step 5: Solve for x
    x = 124,554,502,124.86/346,687.18
  6. Step 6: Final answer
    x = 359,270.57

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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.