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Finding the Fourth Proportional to 222,767.20, 334,118.40 and 64,979.20

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Solution

The fourth proportional to 222,767.20, 334,118.40 and 64,979.20 is: 97,459.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,767.20 : 334,118.40 = 64,979.20 : x
  2. Step 2: Convert to fraction form
    222,767.20/334,118.40 = 64,979.20/x
  3. Step 3: Cross multiply
    222,767.20x = 334,118.40 × 64,979.20
  4. Step 4: Simplify right side
    222,767.20x = 21,710,746,337.28
  5. Step 5: Solve for x
    x = 21,710,746,337.28/222,767.20
  6. Step 6: Final answer
    x = 97,459.35

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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.