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Finding the Fourth Proportional to 72,208.92, 108,366.59 and 34,258.32

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Solution

The fourth proportional to 72,208.92, 108,366.59 and 34,258.32 is: 51,412.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,208.92 : 108,366.59 = 34,258.32 : x
  2. Step 2: Convert to fraction form
    72,208.92/108,366.59 = 34,258.32/x
  3. Step 3: Cross multiply
    72,208.92x = 108,366.59 × 34,258.32
  4. Step 4: Simplify right side
    72,208.92x = 3,712,457,146.24
  5. Step 5: Solve for x
    x = 3,712,457,146.24/72,208.92
  6. Step 6: Final answer
    x = 51,412.72

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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.