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Finding the Fourth Proportional to 92,962.77, 139,422.59 and 45,530.54

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Solution

The fourth proportional to 92,962.77, 139,422.59 and 45,530.54 is: 68,285.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,962.77 : 139,422.59 = 45,530.54 : x
  2. Step 2: Convert to fraction form
    92,962.77/139,422.59 = 45,530.54/x
  3. Step 3: Cross multiply
    92,962.77x = 139,422.59 × 45,530.54
  4. Step 4: Simplify right side
    92,962.77x = 6,347,984,886.13
  5. Step 5: Solve for x
    x = 6,347,984,886.13/92,962.77
  6. Step 6: Final answer
    x = 68,285.24

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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.