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Finding the Fourth Proportional to 353,088.26, 487,251.56 and 200,140.56

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Solution

The fourth proportional to 353,088.26, 487,251.56 and 200,140.56 is: 276,188.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,088.26 : 487,251.56 = 200,140.56 : x
  2. Step 2: Convert to fraction form
    353,088.26/487,251.56 = 200,140.56/x
  3. Step 3: Cross multiply
    353,088.26x = 487,251.56 × 200,140.56
  4. Step 4: Simplify right side
    353,088.26x = 97,518,800,079.27
  5. Step 5: Solve for x
    x = 97,518,800,079.27/353,088.26
  6. Step 6: Final answer
    x = 276,188.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.