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Finding the Fourth Proportional to 92,237.87, 138,044.06 and 56,721.50

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Solution

The fourth proportional to 92,237.87, 138,044.06 and 56,721.50 is: 84,889.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,237.87 : 138,044.06 = 56,721.50 : x
  2. Step 2: Convert to fraction form
    92,237.87/138,044.06 = 56,721.50/x
  3. Step 3: Cross multiply
    92,237.87x = 138,044.06 × 56,721.50
  4. Step 4: Simplify right side
    92,237.87x = 7,830,066,149.29
  5. Step 5: Solve for x
    x = 7,830,066,149.29/92,237.87
  6. Step 6: Final answer
    x = 84,889.93

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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.