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Finding the Fourth Proportional to 116,430.79, 174,580.31 and 40,494.43

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Solution

The fourth proportional to 116,430.79, 174,580.31 and 40,494.43 is: 60,718.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,430.79 : 174,580.31 = 40,494.43 : x
  2. Step 2: Convert to fraction form
    116,430.79/174,580.31 = 40,494.43/x
  3. Step 3: Cross multiply
    116,430.79x = 174,580.31 × 40,494.43
  4. Step 4: Simplify right side
    116,430.79x = 7,069,530,462.13
  5. Step 5: Solve for x
    x = 7,069,530,462.13/116,430.79
  6. Step 6: Final answer
    x = 60,718.74

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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.