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Finding the Fourth Proportional to 92,599.89, 138,901.88 and 64,108.77

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Solution

The fourth proportional to 92,599.89, 138,901.88 and 64,108.77 is: 96,164.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,599.89 : 138,901.88 = 64,108.77 : x
  2. Step 2: Convert to fraction form
    92,599.89/138,901.88 = 64,108.77/x
  3. Step 3: Cross multiply
    92,599.89x = 138,901.88 × 64,108.77
  4. Step 4: Simplify right side
    92,599.89x = 8,904,828,677.49
  5. Step 5: Solve for x
    x = 8,904,828,677.49/92,599.89
  6. Step 6: Final answer
    x = 96,164.57

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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.