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Finding the Fourth Proportional to 74,118, 102,203.36 and 59,762.76

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Solution

The fourth proportional to 74,118, 102,203.36 and 59,762.76 is: 82,408.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,118 : 102,203.36 = 59,762.76 : x
  2. Step 2: Convert to fraction form
    74,118/102,203.36 = 59,762.76/x
  3. Step 3: Cross multiply
    74,118x = 102,203.36 × 59,762.76
  4. Step 4: Simplify right side
    74,118x = 6,107,954,874.87
  5. Step 5: Solve for x
    x = 6,107,954,874.87/74,118
  6. Step 6: Final answer
    x = 82,408.52

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1.5x scale

Why These Related Problems?

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