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Finding the Fourth Proportional to 117,159.72, 175,832.55 and 61,015.74

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Solution

The fourth proportional to 117,159.72, 175,832.55 and 61,015.74 is: 91,572.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,159.72 : 175,832.55 = 61,015.74 : x
  2. Step 2: Convert to fraction form
    117,159.72/175,832.55 = 61,015.74/x
  3. Step 3: Cross multiply
    117,159.72x = 175,832.55 × 61,015.74
  4. Step 4: Simplify right side
    117,159.72x = 10,728,553,154.34
  5. Step 5: Solve for x
    x = 10,728,553,154.34/117,159.72
  6. Step 6: Final answer
    x = 91,572.03

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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.