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Finding the Fourth Proportional to 104,780.74, 157,172.74 and 58,328.86

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Solution

The fourth proportional to 104,780.74, 157,172.74 and 58,328.86 is: 87,494.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,780.74 : 157,172.74 = 58,328.86 : x
  2. Step 2: Convert to fraction form
    104,780.74/157,172.74 = 58,328.86/x
  3. Step 3: Cross multiply
    104,780.74x = 157,172.74 × 58,328.86
  4. Step 4: Simplify right side
    104,780.74x = 9,167,706,747.28
  5. Step 5: Solve for x
    x = 9,167,706,747.28/104,780.74
  6. Step 6: Final answer
    x = 87,494.20

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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.