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Finding the Fourth Proportional to 342,181.45, 513,417.98 and 236,943.01

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Solution

The fourth proportional to 342,181.45, 513,417.98 and 236,943.01 is: 355,515.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,181.45 : 513,417.98 = 236,943.01 : x
  2. Step 2: Convert to fraction form
    342,181.45/513,417.98 = 236,943.01/x
  3. Step 3: Cross multiply
    342,181.45x = 513,417.98 × 236,943.01
  4. Step 4: Simplify right side
    342,181.45x = 121,650,801,569.32
  5. Step 5: Solve for x
    x = 121,650,801,569.32/342,181.45
  6. Step 6: Final answer
    x = 355,515.48

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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.