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Finding the Fourth Proportional to 234,380.99, 351,466.49 and 139,655.95

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Solution

The fourth proportional to 234,380.99, 351,466.49 and 139,655.95 is: 209,421.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,380.99 : 351,466.49 = 139,655.95 : x
  2. Step 2: Convert to fraction form
    234,380.99/351,466.49 = 139,655.95/x
  3. Step 3: Cross multiply
    234,380.99x = 351,466.49 × 139,655.95
  4. Step 4: Simplify right side
    234,380.99x = 49,084,386,024.59
  5. Step 5: Solve for x
    x = 49,084,386,024.59/234,380.99
  6. Step 6: Final answer
    x = 209,421.36

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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.