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Finding the Fourth Proportional to 115,556.58, 159,466.14 and 64,570.14

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Solution

The fourth proportional to 115,556.58, 159,466.14 and 64,570.14 is: 89,105.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,556.58 : 159,466.14 = 64,570.14 : x
  2. Step 2: Convert to fraction form
    115,556.58/159,466.14 = 64,570.14/x
  3. Step 3: Cross multiply
    115,556.58x = 159,466.14 × 64,570.14
  4. Step 4: Simplify right side
    115,556.58x = 10,296,750,985.06
  5. Step 5: Solve for x
    x = 10,296,750,985.06/115,556.58
  6. Step 6: Final answer
    x = 89,105.71

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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.