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Finding the Fourth Proportional to 101,365.92, 139,887.88 and 56,046.84

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Solution

The fourth proportional to 101,365.92, 139,887.88 and 56,046.84 is: 77,346.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,365.92 : 139,887.88 = 56,046.84 : x
  2. Step 2: Convert to fraction form
    101,365.92/139,887.88 = 56,046.84/x
  3. Step 3: Cross multiply
    101,365.92x = 139,887.88 × 56,046.84
  4. Step 4: Simplify right side
    101,365.92x = 7,840,273,628.30
  5. Step 5: Solve for x
    x = 7,840,273,628.30/101,365.92
  6. Step 6: Final answer
    x = 77,346.25

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1.5x scale

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.