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Finding the Fourth Proportional to 156,498.98, 215,935.35 and 92,857.46

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Solution

The fourth proportional to 156,498.98, 215,935.35 and 92,857.46 is: 128,123.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,498.98 : 215,935.35 = 92,857.46 : x
  2. Step 2: Convert to fraction form
    156,498.98/215,935.35 = 92,857.46/x
  3. Step 3: Cross multiply
    156,498.98x = 215,935.35 × 92,857.46
  4. Step 4: Simplify right side
    156,498.98x = 20,051,208,125.21
  5. Step 5: Solve for x
    x = 20,051,208,125.21/156,498.98
  6. Step 6: Final answer
    x = 128,123.57

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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.