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Finding the Fourth Proportional to 117,857.70, 162,701.73 and 92,320.02

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Solution

The fourth proportional to 117,857.70, 162,701.73 and 92,320.02 is: 127,447.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,857.70 : 162,701.73 = 92,320.02 : x
  2. Step 2: Convert to fraction form
    117,857.70/162,701.73 = 92,320.02/x
  3. Step 3: Cross multiply
    117,857.70x = 162,701.73 × 92,320.02
  4. Step 4: Simplify right side
    117,857.70x = 15,020,626,967.63
  5. Step 5: Solve for x
    x = 15,020,626,967.63/117,857.70
  6. Step 6: Final answer
    x = 127,447.14

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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.