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Finding the Fourth Proportional to 116,690.70, 174,920.85 and 57,477.90

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Solution

The fourth proportional to 116,690.70, 174,920.85 and 57,477.90 is: 86,160.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,690.70 : 174,920.85 = 57,477.90 : x
  2. Step 2: Convert to fraction form
    116,690.70/174,920.85 = 57,477.90/x
  3. Step 3: Cross multiply
    116,690.70x = 174,920.85 × 57,477.90
  4. Step 4: Simplify right side
    116,690.70x = 10,054,083,124.22
  5. Step 5: Solve for x
    x = 10,054,083,124.22/116,690.70
  6. Step 6: Final answer
    x = 86,160.11

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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.