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Finding the Fourth Proportional to 313,045.81, 469,570.77 and 88,405.37

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Solution

The fourth proportional to 313,045.81, 469,570.77 and 88,405.37 is: 132,608.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,045.81 : 469,570.77 = 88,405.37 : x
  2. Step 2: Convert to fraction form
    313,045.81/469,570.77 = 88,405.37/x
  3. Step 3: Cross multiply
    313,045.81x = 469,570.77 × 88,405.37
  4. Step 4: Simplify right side
    313,045.81x = 41,512,579,717.41
  5. Step 5: Solve for x
    x = 41,512,579,717.41/313,045.81
  6. Step 6: Final answer
    x = 132,608.64

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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.