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Finding the Fourth Proportional to 92,615.49, 138,603.38 and 57,063.06

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Solution

The fourth proportional to 92,615.49, 138,603.38 and 57,063.06 is: 85,397.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,615.49 : 138,603.38 = 57,063.06 : x
  2. Step 2: Convert to fraction form
    92,615.49/138,603.38 = 57,063.06/x
  3. Step 3: Cross multiply
    92,615.49x = 138,603.38 × 57,063.06
  4. Step 4: Simplify right side
    92,615.49x = 7,909,132,703.83
  5. Step 5: Solve for x
    x = 7,909,132,703.83/92,615.49
  6. Step 6: Final answer
    x = 85,397.52

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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.