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Finding the Fourth Proportional to 175,503.70, 262,487.55 and 156,918.10

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Solution

The fourth proportional to 175,503.70, 262,487.55 and 156,918.10 is: 234,690.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,503.70 : 262,487.55 = 156,918.10 : x
  2. Step 2: Convert to fraction form
    175,503.70/262,487.55 = 156,918.10/x
  3. Step 3: Cross multiply
    175,503.70x = 262,487.55 × 156,918.10
  4. Step 4: Simplify right side
    175,503.70x = 41,189,047,619.66
  5. Step 5: Solve for x
    x = 41,189,047,619.66/175,503.70
  6. Step 6: Final answer
    x = 234,690.48

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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.