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Finding the Fourth Proportional to 116,590.50, 160,894.89 and 66,289.50

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Solution

The fourth proportional to 116,590.50, 160,894.89 and 66,289.50 is: 91,479.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,590.50 : 160,894.89 = 66,289.50 : x
  2. Step 2: Convert to fraction form
    116,590.50/160,894.89 = 66,289.50/x
  3. Step 3: Cross multiply
    116,590.50x = 160,894.89 × 66,289.50
  4. Step 4: Simplify right side
    116,590.50x = 10,665,641,810.66
  5. Step 5: Solve for x
    x = 10,665,641,810.66/116,590.50
  6. Step 6: Final answer
    x = 91,479.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.