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Finding the Fourth Proportional to 140,603.41, 210,693.70 and 56,279.98

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Solution

The fourth proportional to 140,603.41, 210,693.70 and 56,279.98 is: 84,335.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,603.41 : 210,693.70 = 56,279.98 : x
  2. Step 2: Convert to fraction form
    140,603.41/210,693.70 = 56,279.98/x
  3. Step 3: Cross multiply
    140,603.41x = 210,693.70 × 56,279.98
  4. Step 4: Simplify right side
    140,603.41x = 11,857,835,887.26
  5. Step 5: Solve for x
    x = 11,857,835,887.26/140,603.41
  6. Step 6: Final answer
    x = 84,335.34

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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.