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Finding the Fourth Proportional to 103,649.98, 155,408.46 and 49,592.38

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Solution

The fourth proportional to 103,649.98, 155,408.46 and 49,592.38 is: 74,356.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,649.98 : 155,408.46 = 49,592.38 : x
  2. Step 2: Convert to fraction form
    103,649.98/155,408.46 = 49,592.38/x
  3. Step 3: Cross multiply
    103,649.98x = 155,408.46 × 49,592.38
  4. Step 4: Simplify right side
    103,649.98x = 7,707,075,403.53
  5. Step 5: Solve for x
    x = 7,707,075,403.53/103,649.98
  6. Step 6: Final answer
    x = 74,356.75

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1.5x scale

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.