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Finding the Fourth Proportional to 334,004.01, 501,001.72 and 81,284.92

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Solution

The fourth proportional to 334,004.01, 501,001.72 and 81,284.92 is: 121,926.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,004.01 : 501,001.72 = 81,284.92 : x
  2. Step 2: Convert to fraction form
    334,004.01/501,001.72 = 81,284.92/x
  3. Step 3: Cross multiply
    334,004.01x = 501,001.72 × 81,284.92
  4. Step 4: Simplify right side
    334,004.01x = 40,723,884,730.06
  5. Step 5: Solve for x
    x = 40,723,884,730.06/334,004.01
  6. Step 6: Final answer
    x = 121,926.33

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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.