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Finding the Fourth Proportional to 92,021.12, 137,810.12 and 62,348.98

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Solution

The fourth proportional to 92,021.12, 137,810.12 and 62,348.98 is: 93,373.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,021.12 : 137,810.12 = 62,348.98 : x
  2. Step 2: Convert to fraction form
    92,021.12/137,810.12 = 62,348.98/x
  3. Step 3: Cross multiply
    92,021.12x = 137,810.12 × 62,348.98
  4. Step 4: Simplify right side
    92,021.12x = 8,592,320,415.68
  5. Step 5: Solve for x
    x = 8,592,320,415.68/92,021.12
  6. Step 6: Final answer
    x = 93,373.35

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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.