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Finding the Fourth Proportional to 119,642.67, 165,099.47 and 65,924.69

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Solution

The fourth proportional to 119,642.67, 165,099.47 and 65,924.69 is: 90,971.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,642.67 : 165,099.47 = 65,924.69 : x
  2. Step 2: Convert to fraction form
    119,642.67/165,099.47 = 65,924.69/x
  3. Step 3: Cross multiply
    119,642.67x = 165,099.47 × 65,924.69
  4. Step 4: Simplify right side
    119,642.67x = 10,884,130,223.79
  5. Step 5: Solve for x
    x = 10,884,130,223.79/119,642.67
  6. Step 6: Final answer
    x = 90,971.98

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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.