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Finding the Fourth Proportional to 106,606.97, 147,051.30 and 63,556.55

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Solution

The fourth proportional to 106,606.97, 147,051.30 and 63,556.55 is: 87,668.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,606.97 : 147,051.30 = 63,556.55 : x
  2. Step 2: Convert to fraction form
    106,606.97/147,051.30 = 63,556.55/x
  3. Step 3: Cross multiply
    106,606.97x = 147,051.30 × 63,556.55
  4. Step 4: Simplify right side
    106,606.97x = 9,346,072,998.03
  5. Step 5: Solve for x
    x = 9,346,072,998.03/106,606.97
  6. Step 6: Final answer
    x = 87,668.50

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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.