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Finding the Fourth Proportional to 60,187.55, 90,227.63 and 28,578.11

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Solution

The fourth proportional to 60,187.55, 90,227.63 and 28,578.11 is: 42,841.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,187.55 : 90,227.63 = 28,578.11 : x
  2. Step 2: Convert to fraction form
    60,187.55/90,227.63 = 28,578.11/x
  3. Step 3: Cross multiply
    60,187.55x = 90,227.63 × 28,578.11
  4. Step 4: Simplify right side
    60,187.55x = 2,578,534,755.49
  5. Step 5: Solve for x
    x = 2,578,534,755.49/60,187.55
  6. Step 6: Final answer
    x = 42,841.67

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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.