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Finding the Fourth Proportional to 117,295.78, 175,916.68 and 69,924.24

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Solution

The fourth proportional to 117,295.78, 175,916.68 and 69,924.24 is: 104,870.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,295.78 : 175,916.68 = 69,924.24 : x
  2. Step 2: Convert to fraction form
    117,295.78/175,916.68 = 69,924.24/x
  3. Step 3: Cross multiply
    117,295.78x = 175,916.68 × 69,924.24
  4. Step 4: Simplify right side
    117,295.78x = 12,300,840,152.32
  5. Step 5: Solve for x
    x = 12,300,840,152.32/117,295.78
  6. Step 6: Final answer
    x = 104,870.27

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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.