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Finding the Fourth Proportional to 294,673.02, 406,650.39 and 172,172.59

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Solution

The fourth proportional to 294,673.02, 406,650.39 and 172,172.59 is: 237,599.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,673.02 : 406,650.39 = 172,172.59 : x
  2. Step 2: Convert to fraction form
    294,673.02/406,650.39 = 172,172.59/x
  3. Step 3: Cross multiply
    294,673.02x = 406,650.39 × 172,172.59
  4. Step 4: Simplify right side
    294,673.02x = 70,014,049,854.18
  5. Step 5: Solve for x
    x = 70,014,049,854.18/294,673.02
  6. Step 6: Final answer
    x = 237,599.12

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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.