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Finding the Fourth Proportional to 339,283.95, 508,776.47 and 159,420.56

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Solution

The fourth proportional to 339,283.95, 508,776.47 and 159,420.56 is: 239,060.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,283.95 : 508,776.47 = 159,420.56 : x
  2. Step 2: Convert to fraction form
    339,283.95/508,776.47 = 159,420.56/x
  3. Step 3: Cross multiply
    339,283.95x = 508,776.47 × 159,420.56
  4. Step 4: Simplify right side
    339,283.95x = 81,109,429,762.22
  5. Step 5: Solve for x
    x = 81,109,429,762.22/339,283.95
  6. Step 6: Final answer
    x = 239,060.62

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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.