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Finding the Fourth Proportional to 101,064.32, 139,468.48 and 58,046.60

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Solution

The fourth proportional to 101,064.32, 139,468.48 and 58,046.60 is: 80,104.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,064.32 : 139,468.48 = 58,046.60 : x
  2. Step 2: Convert to fraction form
    101,064.32/139,468.48 = 58,046.60/x
  3. Step 3: Cross multiply
    101,064.32x = 139,468.48 × 58,046.60
  4. Step 4: Simplify right side
    101,064.32x = 8,095,671,208.98
  5. Step 5: Solve for x
    x = 8,095,671,208.98/101,064.32
  6. Step 6: Final answer
    x = 80,104.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.