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Finding the Fourth Proportional to 556,504.40, 834,788.92 and 157,111.74

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Solution

The fourth proportional to 556,504.40, 834,788.92 and 157,111.74 is: 235,676.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,504.40 : 834,788.92 = 157,111.74 : x
  2. Step 2: Convert to fraction form
    556,504.40/834,788.92 = 157,111.74/x
  3. Step 3: Cross multiply
    556,504.40x = 834,788.92 × 157,111.74
  4. Step 4: Simplify right side
    556,504.40x = 131,155,139,753.92
  5. Step 5: Solve for x
    x = 131,155,139,753.92/556,504.40
  6. Step 6: Final answer
    x = 235,676.73

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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.