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Finding the Fourth Proportional to 556,790.85, 835,093.40 and 157,340.43

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Solution

The fourth proportional to 556,790.85, 835,093.40 and 157,340.43 is: 235,984.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,790.85 : 835,093.40 = 157,340.43 : x
  2. Step 2: Convert to fraction form
    556,790.85/835,093.40 = 157,340.43/x
  3. Step 3: Cross multiply
    556,790.85x = 835,093.40 × 157,340.43
  4. Step 4: Simplify right side
    556,790.85x = 131,393,953,859.46
  5. Step 5: Solve for x
    x = 131,393,953,859.46/556,790.85
  6. Step 6: Final answer
    x = 235,984.40

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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.