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Finding the Fourth Proportional to 201,700.40, 302,518.20 and 61,426.40

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Solution

The fourth proportional to 201,700.40, 302,518.20 and 61,426.40 is: 92,129.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,700.40 : 302,518.20 = 61,426.40 : x
  2. Step 2: Convert to fraction form
    201,700.40/302,518.20 = 61,426.40/x
  3. Step 3: Cross multiply
    201,700.40x = 302,518.20 × 61,426.40
  4. Step 4: Simplify right side
    201,700.40x = 18,582,603,960.48
  5. Step 5: Solve for x
    x = 18,582,603,960.48/201,700.40
  6. Step 6: Final answer
    x = 92,129.73

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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.