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Finding the Fourth Proportional to 161,995.80, 242,993.70 and 56,825.40

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Solution

The fourth proportional to 161,995.80, 242,993.70 and 56,825.40 is: 85,238.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,995.80 : 242,993.70 = 56,825.40 : x
  2. Step 2: Convert to fraction form
    161,995.80/242,993.70 = 56,825.40/x
  3. Step 3: Cross multiply
    161,995.80x = 242,993.70 × 56,825.40
  4. Step 4: Simplify right side
    161,995.80x = 13,808,214,199.98
  5. Step 5: Solve for x
    x = 13,808,214,199.98/161,995.80
  6. Step 6: Final answer
    x = 85,238.10

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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.