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Finding the Fourth Proportional to 293,646.24, 440,535 and 93,978.60

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Solution

The fourth proportional to 293,646.24, 440,535 and 93,978.60 is: 140,988.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,646.24 : 440,535 = 93,978.60 : x
  2. Step 2: Convert to fraction form
    293,646.24/440,535 = 93,978.60/x
  3. Step 3: Cross multiply
    293,646.24x = 440,535 × 93,978.60
  4. Step 4: Simplify right side
    293,646.24x = 41,400,862,551
  5. Step 5: Solve for x
    x = 41,400,862,551/293,646.24
  6. Step 6: Final answer
    x = 140,988.91

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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.