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Finding the Fourth Proportional to 161,808.90, 242,670.15 and 56,616.90

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Solution

The fourth proportional to 161,808.90, 242,670.15 and 56,616.90 is: 84,910.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,808.90 : 242,670.15 = 56,616.90 : x
  2. Step 2: Convert to fraction form
    161,808.90/242,670.15 = 56,616.90/x
  3. Step 3: Cross multiply
    161,808.90x = 242,670.15 × 56,616.90
  4. Step 4: Simplify right side
    161,808.90x = 13,739,231,615.54
  5. Step 5: Solve for x
    x = 13,739,231,615.54/161,808.90
  6. Step 6: Final answer
    x = 84,910.23

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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.