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Finding the Fourth Proportional to 148,407.59, 204,971.63 and 100,577.90

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Solution

The fourth proportional to 148,407.59, 204,971.63 and 100,577.90 is: 138,912.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,407.59 : 204,971.63 = 100,577.90 : x
  2. Step 2: Convert to fraction form
    148,407.59/204,971.63 = 100,577.90/x
  3. Step 3: Cross multiply
    148,407.59x = 204,971.63 × 100,577.90
  4. Step 4: Simplify right side
    148,407.59x = 20,615,614,577.23
  5. Step 5: Solve for x
    x = 20,615,614,577.23/148,407.59
  6. Step 6: Final answer
    x = 138,912.14

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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.