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Finding the Fourth Proportional to 92,258.61, 138,388.05 and 25,698.93

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Solution

The fourth proportional to 92,258.61, 138,388.05 and 25,698.93 is: 38,548.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,258.61 : 138,388.05 = 25,698.93 : x
  2. Step 2: Convert to fraction form
    92,258.61/138,388.05 = 25,698.93/x
  3. Step 3: Cross multiply
    92,258.61x = 138,388.05 × 25,698.93
  4. Step 4: Simplify right side
    92,258.61x = 3,556,424,809.79
  5. Step 5: Solve for x
    x = 3,556,424,809.79/92,258.61
  6. Step 6: Final answer
    x = 38,548.43

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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.