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Finding the Fourth Proportional to 290,762.20, 401,192.94 and 169,880.14

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Solution

The fourth proportional to 290,762.20, 401,192.94 and 169,880.14 is: 234,400.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,762.20 : 401,192.94 = 169,880.14 : x
  2. Step 2: Convert to fraction form
    290,762.20/401,192.94 = 169,880.14/x
  3. Step 3: Cross multiply
    290,762.20x = 401,192.94 × 169,880.14
  4. Step 4: Simplify right side
    290,762.20x = 68,154,712,814.21
  5. Step 5: Solve for x
    x = 68,154,712,814.21/290,762.20
  6. Step 6: Final answer
    x = 234,400.18

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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.