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Finding the Fourth Proportional to 222,449.95, 333,731.80 and 64,678.40

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Solution

The fourth proportional to 222,449.95, 333,731.80 and 64,678.40 is: 97,034.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,449.95 : 333,731.80 = 64,678.40 : x
  2. Step 2: Convert to fraction form
    222,449.95/333,731.80 = 64,678.40/x
  3. Step 3: Cross multiply
    222,449.95x = 333,731.80 × 64,678.40
  4. Step 4: Simplify right side
    222,449.95x = 21,585,238,853.12
  5. Step 5: Solve for x
    x = 21,585,238,853.12/222,449.95
  6. Step 6: Final answer
    x = 97,034.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.