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Finding the Fourth Proportional to 84,944.16, 117,228.72 and 47,218.32

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Solution

The fourth proportional to 84,944.16, 117,228.72 and 47,218.32 is: 65,164.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,944.16 : 117,228.72 = 47,218.32 : x
  2. Step 2: Convert to fraction form
    84,944.16/117,228.72 = 47,218.32/x
  3. Step 3: Cross multiply
    84,944.16x = 117,228.72 × 47,218.32
  4. Step 4: Simplify right side
    84,944.16x = 5,535,343,214.15
  5. Step 5: Solve for x
    x = 5,535,343,214.15/84,944.16
  6. Step 6: Final answer
    x = 65,164.49

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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.