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Finding the Fourth Proportional to 215,348.49, 323,035.83 and 65,599.74

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Solution

The fourth proportional to 215,348.49, 323,035.83 and 65,599.74 is: 98,403.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,348.49 : 323,035.83 = 65,599.74 : x
  2. Step 2: Convert to fraction form
    215,348.49/323,035.83 = 65,599.74/x
  3. Step 3: Cross multiply
    215,348.49x = 323,035.83 × 65,599.74
  4. Step 4: Simplify right side
    215,348.49x = 21,191,066,458.68
  5. Step 5: Solve for x
    x = 21,191,066,458.68/215,348.49
  6. Step 6: Final answer
    x = 98,403.60

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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.