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Finding the Fourth Proportional to 204,875.01, 307,407.56 and 86,573.97

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Solution

The fourth proportional to 204,875.01, 307,407.56 and 86,573.97 is: 129,901.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,875.01 : 307,407.56 = 86,573.97 : x
  2. Step 2: Convert to fraction form
    204,875.01/307,407.56 = 86,573.97/x
  3. Step 3: Cross multiply
    204,875.01x = 307,407.56 × 86,573.97
  4. Step 4: Simplify right side
    204,875.01x = 26,613,492,444.34
  5. Step 5: Solve for x
    x = 26,613,492,444.34/204,875.01
  6. Step 6: Final answer
    x = 129,901.12

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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.