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Finding the Fourth Proportional to 79,888.87, 110,220.87 and 53,036.56

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Solution

The fourth proportional to 79,888.87, 110,220.87 and 53,036.56 is: 73,173.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,888.87 : 110,220.87 = 53,036.56 : x
  2. Step 2: Convert to fraction form
    79,888.87/110,220.87 = 53,036.56/x
  3. Step 3: Cross multiply
    79,888.87x = 110,220.87 × 53,036.56
  4. Step 4: Simplify right side
    79,888.87x = 5,845,735,785.01
  5. Step 5: Solve for x
    x = 5,845,735,785.01/79,888.87
  6. Step 6: Final answer
    x = 73,173.34

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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.