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Finding the Fourth Proportional to 74,503.08, 102,812.22 and 40,969.08

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Solution

The fourth proportional to 74,503.08, 102,812.22 and 40,969.08 is: 56,536.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,503.08 : 102,812.22 = 40,969.08 : x
  2. Step 2: Convert to fraction form
    74,503.08/102,812.22 = 40,969.08/x
  3. Step 3: Cross multiply
    74,503.08x = 102,812.22 × 40,969.08
  4. Step 4: Simplify right side
    74,503.08x = 4,212,122,066.16
  5. Step 5: Solve for x
    x = 4,212,122,066.16/74,503.08
  6. Step 6: Final answer
    x = 56,536.21

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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.