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Finding the Fourth Proportional to 84,657.18, 116,803.26 and 66,696.51

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Solution

The fourth proportional to 84,657.18, 116,803.26 and 66,696.51 is: 92,022.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,657.18 : 116,803.26 = 66,696.51 : x
  2. Step 2: Convert to fraction form
    84,657.18/116,803.26 = 66,696.51/x
  3. Step 3: Cross multiply
    84,657.18x = 116,803.26 × 66,696.51
  4. Step 4: Simplify right side
    84,657.18x = 7,790,369,798.62
  5. Step 5: Solve for x
    x = 7,790,369,798.62/84,657.18
  6. Step 6: Final answer
    x = 92,022.55

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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.