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Finding the Fourth Proportional to 250,788.79, 346,088.53 and 143,361.22

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Solution

The fourth proportional to 250,788.79, 346,088.53 and 143,361.22 is: 197,838.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,788.79 : 346,088.53 = 143,361.22 : x
  2. Step 2: Convert to fraction form
    250,788.79/346,088.53 = 143,361.22/x
  3. Step 3: Cross multiply
    250,788.79x = 346,088.53 × 143,361.22
  4. Step 4: Simplify right side
    250,788.79x = 49,615,672,158.36
  5. Step 5: Solve for x
    x = 49,615,672,158.36/250,788.79
  6. Step 6: Final answer
    x = 197,838.48

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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.