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Finding the Fourth Proportional to 110,507.85, 165,668.07 and 39,409.09

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Solution

The fourth proportional to 110,507.85, 165,668.07 and 39,409.09 is: 59,080.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,507.85 : 165,668.07 = 39,409.09 : x
  2. Step 2: Convert to fraction form
    110,507.85/165,668.07 = 39,409.09/x
  3. Step 3: Cross multiply
    110,507.85x = 165,668.07 × 39,409.09
  4. Step 4: Simplify right side
    110,507.85x = 6,528,827,880.76
  5. Step 5: Solve for x
    x = 6,528,827,880.76/110,507.85
  6. Step 6: Final answer
    x = 59,080.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.