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Finding the Fourth Proportional to 222,569.37, 307,145.93 and 121,967.37

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Solution

The fourth proportional to 222,569.37, 307,145.93 and 121,967.37 is: 168,315.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,569.37 : 307,145.93 = 121,967.37 : x
  2. Step 2: Convert to fraction form
    222,569.37/307,145.93 = 121,967.37/x
  3. Step 3: Cross multiply
    222,569.37x = 307,145.93 × 121,967.37
  4. Step 4: Simplify right side
    222,569.37x = 37,461,780,678.47
  5. Step 5: Solve for x
    x = 37,461,780,678.47/222,569.37
  6. Step 6: Final answer
    x = 168,315.08

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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.