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Finding the Fourth Proportional to 86,696.50, 119,650.91 and 48,973.18

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Solution

The fourth proportional to 86,696.50, 119,650.91 and 48,973.18 is: 67,588.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,696.50 : 119,650.91 = 48,973.18 : x
  2. Step 2: Convert to fraction form
    86,696.50/119,650.91 = 48,973.18/x
  3. Step 3: Cross multiply
    86,696.50x = 119,650.91 × 48,973.18
  4. Step 4: Simplify right side
    86,696.50x = 5,859,685,552.59
  5. Step 5: Solve for x
    x = 5,859,685,552.59/86,696.50
  6. Step 6: Final answer
    x = 67,588.49

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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.