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Finding the Fourth Proportional to 127,301.70, 190,693.35 and 65,007.30

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Solution

The fourth proportional to 127,301.70, 190,693.35 and 65,007.30 is: 97,378.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,301.70 : 190,693.35 = 65,007.30 : x
  2. Step 2: Convert to fraction form
    127,301.70/190,693.35 = 65,007.30/x
  3. Step 3: Cross multiply
    127,301.70x = 190,693.35 × 65,007.30
  4. Step 4: Simplify right side
    127,301.70x = 12,396,459,811.46
  5. Step 5: Solve for x
    x = 12,396,459,811.46/127,301.70
  6. Step 6: Final answer
    x = 97,378.59

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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.