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Finding the Fourth Proportional to 222,973.12, 307,699.86 and 122,371.12

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Solution

The fourth proportional to 222,973.12, 307,699.86 and 122,371.12 is: 168,870.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,973.12 : 307,699.86 = 122,371.12 : x
  2. Step 2: Convert to fraction form
    222,973.12/307,699.86 = 122,371.12/x
  3. Step 3: Cross multiply
    222,973.12x = 307,699.86 × 122,371.12
  4. Step 4: Simplify right side
    222,973.12x = 37,653,576,492.04
  5. Step 5: Solve for x
    x = 37,653,576,492.04/222,973.12
  6. Step 6: Final answer
    x = 168,870.47

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1.5x scale

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.