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Finding the Fourth Proportional to 74,492.16, 102,799.18 and 40,958.16

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Solution

The fourth proportional to 74,492.16, 102,799.18 and 40,958.16 is: 56,522.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,492.16 : 102,799.18 = 40,958.16 : x
  2. Step 2: Convert to fraction form
    74,492.16/102,799.18 = 40,958.16/x
  3. Step 3: Cross multiply
    74,492.16x = 102,799.18 × 40,958.16
  4. Step 4: Simplify right side
    74,492.16x = 4,210,464,697.62
  5. Step 5: Solve for x
    x = 4,210,464,697.62/74,492.16
  6. Step 6: Final answer
    x = 56,522.26

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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.