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Finding the Fourth Proportional to 92,270.93, 138,092.56 and 56,713.50

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Solution

The fourth proportional to 92,270.93, 138,092.56 and 56,713.50 is: 84,877.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,270.93 : 138,092.56 = 56,713.50 : x
  2. Step 2: Convert to fraction form
    92,270.93/138,092.56 = 56,713.50/x
  3. Step 3: Cross multiply
    92,270.93x = 138,092.56 × 56,713.50
  4. Step 4: Simplify right side
    92,270.93x = 7,831,711,427.53
  5. Step 5: Solve for x
    x = 7,831,711,427.53/92,270.93
  6. Step 6: Final answer
    x = 84,877.35

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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.