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Finding the Fourth Proportional to 74,697.48, 103,082.52 and 40,705.95

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Solution

The fourth proportional to 74,697.48, 103,082.52 and 40,705.95 is: 56,174.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,697.48 : 103,082.52 = 40,705.95 : x
  2. Step 2: Convert to fraction form
    74,697.48/103,082.52 = 40,705.95/x
  3. Step 3: Cross multiply
    74,697.48x = 103,082.52 × 40,705.95
  4. Step 4: Simplify right side
    74,697.48x = 4,196,071,904.99
  5. Step 5: Solve for x
    x = 4,196,071,904.99/74,697.48
  6. Step 6: Final answer
    x = 56,174.21

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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.