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Finding the Fourth Proportional to 124,548.60, 186,434.10 and 89,556.60

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Solution

The fourth proportional to 124,548.60, 186,434.10 and 89,556.60 is: 134,055.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,548.60 : 186,434.10 = 89,556.60 : x
  2. Step 2: Convert to fraction form
    124,548.60/186,434.10 = 89,556.60/x
  3. Step 3: Cross multiply
    124,548.60x = 186,434.10 × 89,556.60
  4. Step 4: Simplify right side
    124,548.60x = 16,696,404,120.06
  5. Step 5: Solve for x
    x = 16,696,404,120.06/124,548.60
  6. Step 6: Final answer
    x = 134,055.33

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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.