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Finding the Fourth Proportional to 143,297.40, 214,946.10 and 134,549.40

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Solution

The fourth proportional to 143,297.40, 214,946.10 and 134,549.40 is: 201,824.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,297.40 : 214,946.10 = 134,549.40 : x
  2. Step 2: Convert to fraction form
    143,297.40/214,946.10 = 134,549.40/x
  3. Step 3: Cross multiply
    143,297.40x = 214,946.10 × 134,549.40
  4. Step 4: Simplify right side
    143,297.40x = 28,920,868,787.34
  5. Step 5: Solve for x
    x = 28,920,868,787.34/143,297.40
  6. Step 6: Final answer
    x = 201,824.10

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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.