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Finding the Fourth Proportional to 162,435.20, 243,307.20 and 134,787.20

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Solution

The fourth proportional to 162,435.20, 243,307.20 and 134,787.20 is: 201,894.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,435.20 : 243,307.20 = 134,787.20 : x
  2. Step 2: Convert to fraction form
    162,435.20/243,307.20 = 134,787.20/x
  3. Step 3: Cross multiply
    162,435.20x = 243,307.20 × 134,787.20
  4. Step 4: Simplify right side
    162,435.20x = 32,794,696,227.84
  5. Step 5: Solve for x
    x = 32,794,696,227.84/162,435.20
  6. Step 6: Final answer
    x = 201,894.02

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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.