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Finding the Fourth Proportional to 373,129, 514,918.02 and 203,363.53

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Solution

The fourth proportional to 373,129, 514,918.02 and 203,363.53 is: 280,641.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,129 : 514,918.02 = 203,363.53 : x
  2. Step 2: Convert to fraction form
    373,129/514,918.02 = 203,363.53/x
  3. Step 3: Cross multiply
    373,129x = 514,918.02 × 203,363.53
  4. Step 4: Simplify right side
    373,129x = 104,715,546,207.81
  5. Step 5: Solve for x
    x = 104,715,546,207.81/373,129
  6. Step 6: Final answer
    x = 280,641.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.