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Finding the Fourth Proportional to 92,906.52, 128,264.20 and 61,167.68

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Solution

The fourth proportional to 92,906.52, 128,264.20 and 61,167.68 is: 84,446.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,906.52 : 128,264.20 = 61,167.68 : x
  2. Step 2: Convert to fraction form
    92,906.52/128,264.20 = 61,167.68/x
  3. Step 3: Cross multiply
    92,906.52x = 128,264.20 × 61,167.68
  4. Step 4: Simplify right side
    92,906.52x = 7,845,623,541.06
  5. Step 5: Solve for x
    x = 7,845,623,541.06/92,906.52
  6. Step 6: Final answer
    x = 84,446.43

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1.5x scale

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.