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Finding the Fourth Proportional to 117,045.44, 161,510.96 and 66,053.60

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Solution

The fourth proportional to 117,045.44, 161,510.96 and 66,053.60 is: 91,147.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,045.44 : 161,510.96 = 66,053.60 : x
  2. Step 2: Convert to fraction form
    117,045.44/161,510.96 = 66,053.60/x
  3. Step 3: Cross multiply
    117,045.44x = 161,510.96 × 66,053.60
  4. Step 4: Simplify right side
    117,045.44x = 10,668,380,347.46
  5. Step 5: Solve for x
    x = 10,668,380,347.46/117,045.44
  6. Step 6: Final answer
    x = 91,147.34

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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.