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Finding the Fourth Proportional to 127,200.68, 190,801.01 and 64,992.68

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Solution

The fourth proportional to 127,200.68, 190,801.01 and 64,992.68 is: 97,489.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,200.68 : 190,801.01 = 64,992.68 : x
  2. Step 2: Convert to fraction form
    127,200.68/190,801.01 = 64,992.68/x
  3. Step 3: Cross multiply
    127,200.68x = 190,801.01 × 64,992.68
  4. Step 4: Simplify right side
    127,200.68x = 12,400,668,195.08
  5. Step 5: Solve for x
    x = 12,400,668,195.08/127,200.68
  6. Step 6: Final answer
    x = 97,489.01

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Similar ratio
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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.