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Finding the Fourth Proportional to 72,923.22, 109,275.48 and 56,258.28

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Solution

The fourth proportional to 72,923.22, 109,275.48 and 56,258.28 is: 84,303.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,923.22 : 109,275.48 = 56,258.28 : x
  2. Step 2: Convert to fraction form
    72,923.22/109,275.48 = 56,258.28/x
  3. Step 3: Cross multiply
    72,923.22x = 109,275.48 × 56,258.28
  4. Step 4: Simplify right side
    72,923.22x = 6,147,650,550.97
  5. Step 5: Solve for x
    x = 6,147,650,550.97/72,923.22
  6. Step 6: Final answer
    x = 84,303.06

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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.