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Finding the Fourth Proportional to 216,666.26, 325,040.10 and 98,345.92

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Solution

The fourth proportional to 216,666.26, 325,040.10 and 98,345.92 is: 147,537.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,666.26 : 325,040.10 = 98,345.92 : x
  2. Step 2: Convert to fraction form
    216,666.26/325,040.10 = 98,345.92/x
  3. Step 3: Cross multiply
    216,666.26x = 325,040.10 × 98,345.92
  4. Step 4: Simplify right side
    216,666.26x = 31,966,367,671.39
  5. Step 5: Solve for x
    x = 31,966,367,671.39/216,666.26
  6. Step 6: Final answer
    x = 147,537.36

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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.