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Finding the Fourth Proportional to 91,347.17, 137,019.11 and 35,199.45

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Solution

The fourth proportional to 91,347.17, 137,019.11 and 35,199.45 is: 52,798.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,347.17 : 137,019.11 = 35,199.45 : x
  2. Step 2: Convert to fraction form
    91,347.17/137,019.11 = 35,199.45/x
  3. Step 3: Cross multiply
    91,347.17x = 137,019.11 × 35,199.45
  4. Step 4: Simplify right side
    91,347.17x = 4,822,997,135.49
  5. Step 5: Solve for x
    x = 4,822,997,135.49/91,347.17
  6. Step 6: Final answer
    x = 52,798.54

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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.