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Finding the Fourth Proportional to 72,558.60, 108,811.98 and 25,802.16

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Solution

The fourth proportional to 72,558.60, 108,811.98 and 25,802.16 is: 38,694.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,558.60 : 108,811.98 = 25,802.16 : x
  2. Step 2: Convert to fraction form
    72,558.60/108,811.98 = 25,802.16/x
  3. Step 3: Cross multiply
    72,558.60x = 108,811.98 × 25,802.16
  4. Step 4: Simplify right side
    72,558.60x = 2,807,584,117.88
  5. Step 5: Solve for x
    x = 2,807,584,117.88/72,558.60
  6. Step 6: Final answer
    x = 38,694.02

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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.