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Finding the Fourth Proportional to 347,145.44, 520,722.48 and 110,487.20

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Solution

The fourth proportional to 347,145.44, 520,722.48 and 110,487.20 is: 165,732.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,145.44 : 520,722.48 = 110,487.20 : x
  2. Step 2: Convert to fraction form
    347,145.44/520,722.48 = 110,487.20/x
  3. Step 3: Cross multiply
    347,145.44x = 520,722.48 × 110,487.20
  4. Step 4: Simplify right side
    347,145.44x = 57,533,168,792.26
  5. Step 5: Solve for x
    x = 57,533,168,792.26/347,145.44
  6. Step 6: Final answer
    x = 165,732.17

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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.