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Finding the Fourth Proportional to 369,648.74, 554,506.91 and 103,408.47

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Solution

The fourth proportional to 369,648.74, 554,506.91 and 103,408.47 is: 155,122.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,648.74 : 554,506.91 = 103,408.47 : x
  2. Step 2: Convert to fraction form
    369,648.74/554,506.91 = 103,408.47/x
  3. Step 3: Cross multiply
    369,648.74x = 554,506.91 × 103,408.47
  4. Step 4: Simplify right side
    369,648.74x = 57,340,713,179.49
  5. Step 5: Solve for x
    x = 57,340,713,179.49/369,648.74
  6. Step 6: Final answer
    x = 155,122.17

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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.