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Finding the Fourth Proportional to 90,247.98, 124,543.20 and 49,962.41

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Solution

The fourth proportional to 90,247.98, 124,543.20 and 49,962.41 is: 68,948.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,247.98 : 124,543.20 = 49,962.41 : x
  2. Step 2: Convert to fraction form
    90,247.98/124,543.20 = 49,962.41/x
  3. Step 3: Cross multiply
    90,247.98x = 124,543.20 × 49,962.41
  4. Step 4: Simplify right side
    90,247.98x = 6,222,478,421.11
  5. Step 5: Solve for x
    x = 6,222,478,421.11/90,247.98
  6. Step 6: Final answer
    x = 68,948.67

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.