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Finding the Fourth Proportional to 222,685.84, 334,084.12 and 64,915.68

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Solution

The fourth proportional to 222,685.84, 334,084.12 and 64,915.68 is: 97,389.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,685.84 : 334,084.12 = 64,915.68 : x
  2. Step 2: Convert to fraction form
    222,685.84/334,084.12 = 64,915.68/x
  3. Step 3: Cross multiply
    222,685.84x = 334,084.12 × 64,915.68
  4. Step 4: Simplify right side
    222,685.84x = 21,687,297,827.00
  5. Step 5: Solve for x
    x = 21,687,297,827.00/222,685.84
  6. Step 6: Final answer
    x = 97,389.66

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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.