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Finding the Fourth Proportional to 347,219.68, 520,657.22 and 110,531.60

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Solution

The fourth proportional to 347,219.68, 520,657.22 and 110,531.60 is: 165,742.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,219.68 : 520,657.22 = 110,531.60 : x
  2. Step 2: Convert to fraction form
    347,219.68/520,657.22 = 110,531.60/x
  3. Step 3: Cross multiply
    347,219.68x = 520,657.22 × 110,531.60
  4. Step 4: Simplify right side
    347,219.68x = 57,549,075,578.15
  5. Step 5: Solve for x
    x = 57,549,075,578.15/347,219.68
  6. Step 6: Final answer
    x = 165,742.55

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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.