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Finding the Fourth Proportional to 161,700.80, 242,551.20 and 50,878.40

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Solution

The fourth proportional to 161,700.80, 242,551.20 and 50,878.40 is: 76,317.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,700.80 : 242,551.20 = 50,878.40 : x
  2. Step 2: Convert to fraction form
    161,700.80/242,551.20 = 50,878.40/x
  3. Step 3: Cross multiply
    161,700.80x = 242,551.20 × 50,878.40
  4. Step 4: Simplify right side
    161,700.80x = 12,340,616,974.08
  5. Step 5: Solve for x
    x = 12,340,616,974.08/161,700.80
  6. Step 6: Final answer
    x = 76,317.60

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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.