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Finding the Fourth Proportional to 347,009.36, 520,565.88 and 110,359.76

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Solution

The fourth proportional to 347,009.36, 520,565.88 and 110,359.76 is: 165,556.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,009.36 : 520,565.88 = 110,359.76 : x
  2. Step 2: Convert to fraction form
    347,009.36/520,565.88 = 110,359.76/x
  3. Step 3: Cross multiply
    347,009.36x = 520,565.88 × 110,359.76
  4. Step 4: Simplify right side
    347,009.36x = 57,449,525,580.99
  5. Step 5: Solve for x
    x = 57,449,525,580.99/347,009.36
  6. Step 6: Final answer
    x = 165,556.13

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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.