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Finding the Fourth Proportional to 371,019.96, 556,420.50 and 157,787.46

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Solution

The fourth proportional to 371,019.96, 556,420.50 and 157,787.46 is: 236,634.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,019.96 : 556,420.50 = 157,787.46 : x
  2. Step 2: Convert to fraction form
    371,019.96/556,420.50 = 157,787.46/x
  3. Step 3: Cross multiply
    371,019.96x = 556,420.50 × 157,787.46
  4. Step 4: Simplify right side
    371,019.96x = 87,796,177,386.93
  5. Step 5: Solve for x
    x = 87,796,177,386.93/371,019.96
  6. Step 6: Final answer
    x = 236,634.65

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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.