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Finding the Fourth Proportional to 227,043.69, 340,561.86 and 77,388.18

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Solution

The fourth proportional to 227,043.69, 340,561.86 and 77,388.18 is: 116,081.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,043.69 : 340,561.86 = 77,388.18 : x
  2. Step 2: Convert to fraction form
    227,043.69/340,561.86 = 77,388.18/x
  3. Step 3: Cross multiply
    227,043.69x = 340,561.86 × 77,388.18
  4. Step 4: Simplify right side
    227,043.69x = 26,355,462,522.81
  5. Step 5: Solve for x
    x = 26,355,462,522.81/227,043.69
  6. Step 6: Final answer
    x = 116,081.02

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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.