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Finding the Fourth Proportional to 140,411.13, 210,803.52 and 73,897.96

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Solution

The fourth proportional to 140,411.13, 210,803.52 and 73,897.96 is: 110,945.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,411.13 : 210,803.52 = 73,897.96 : x
  2. Step 2: Convert to fraction form
    140,411.13/210,803.52 = 73,897.96/x
  3. Step 3: Cross multiply
    140,411.13x = 210,803.52 × 73,897.96
  4. Step 4: Simplify right side
    140,411.13x = 15,577,950,088.82
  5. Step 5: Solve for x
    x = 15,577,950,088.82/140,411.13
  6. Step 6: Final answer
    x = 110,945.27

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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.