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Finding the Fourth Proportional to 222,448.80, 333,678.72 and 64,678.80

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Solution

The fourth proportional to 222,448.80, 333,678.72 and 64,678.80 is: 97,019.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,448.80 : 333,678.72 = 64,678.80 : x
  2. Step 2: Convert to fraction form
    222,448.80/333,678.72 = 64,678.80/x
  3. Step 3: Cross multiply
    222,448.80x = 333,678.72 × 64,678.80
  4. Step 4: Simplify right side
    222,448.80x = 21,581,939,195.14
  5. Step 5: Solve for x
    x = 21,581,939,195.14/222,448.80
  6. Step 6: Final answer
    x = 97,019.80

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1.5x scale

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.