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Finding the Fourth Proportional to 75,692.40, 113,541.71 and 28,302.69

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Solution

The fourth proportional to 75,692.40, 113,541.71 and 28,302.69 is: 42,455.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,692.40 : 113,541.71 = 28,302.69 : x
  2. Step 2: Convert to fraction form
    75,692.40/113,541.71 = 28,302.69/x
  3. Step 3: Cross multiply
    75,692.40x = 113,541.71 × 28,302.69
  4. Step 4: Simplify right side
    75,692.40x = 3,213,535,820.20
  5. Step 5: Solve for x
    x = 3,213,535,820.20/75,692.40
  6. Step 6: Final answer
    x = 42,455.20

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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.