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Finding the Fourth Proportional to 161,787.70, 242,584.35 and 83,055.70

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Solution

The fourth proportional to 161,787.70, 242,584.35 and 83,055.70 is: 124,533.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,787.70 : 242,584.35 = 83,055.70 : x
  2. Step 2: Convert to fraction form
    161,787.70/242,584.35 = 83,055.70/x
  3. Step 3: Cross multiply
    161,787.70x = 242,584.35 × 83,055.70
  4. Step 4: Simplify right side
    161,787.70x = 20,148,012,998.30
  5. Step 5: Solve for x
    x = 20,148,012,998.30/161,787.70
  6. Step 6: Final answer
    x = 124,533.65

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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.