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Finding the Fourth Proportional to 223,392.72, 335,088.90 and 65,731.80

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Solution

The fourth proportional to 223,392.72, 335,088.90 and 65,731.80 is: 98,597.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,392.72 : 335,088.90 = 65,731.80 : x
  2. Step 2: Convert to fraction form
    223,392.72/335,088.90 = 65,731.80/x
  3. Step 3: Cross multiply
    223,392.72x = 335,088.90 × 65,731.80
  4. Step 4: Simplify right side
    223,392.72x = 22,025,996,557.02
  5. Step 5: Solve for x
    x = 22,025,996,557.02/223,392.72
  6. Step 6: Final answer
    x = 98,597.65

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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.