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Finding the Fourth Proportional to 161,884.80, 242,632.80 and 82,958.40

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Solution

The fourth proportional to 161,884.80, 242,632.80 and 82,958.40 is: 124,337.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,884.80 : 242,632.80 = 82,958.40 : x
  2. Step 2: Convert to fraction form
    161,884.80/242,632.80 = 82,958.40/x
  3. Step 3: Cross multiply
    161,884.80x = 242,632.80 × 82,958.40
  4. Step 4: Simplify right side
    161,884.80x = 20,128,428,875.52
  5. Step 5: Solve for x
    x = 20,128,428,875.52/161,884.80
  6. Step 6: Final answer
    x = 124,337.98

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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.