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Finding the Fourth Proportional to 157,963.16, 236,986.28 and 56,771.43

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Solution

The fourth proportional to 157,963.16, 236,986.28 and 56,771.43 is: 85,172.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,963.16 : 236,986.28 = 56,771.43 : x
  2. Step 2: Convert to fraction form
    157,963.16/236,986.28 = 56,771.43/x
  3. Step 3: Cross multiply
    157,963.16x = 236,986.28 × 56,771.43
  4. Step 4: Simplify right side
    157,963.16x = 13,454,050,005.98
  5. Step 5: Solve for x
    x = 13,454,050,005.98/157,963.16
  6. Step 6: Final answer
    x = 85,172.07

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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.