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Finding the Fourth Proportional to 73,208.48, 109,838.88 and 28,810.64

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Solution

The fourth proportional to 73,208.48, 109,838.88 and 28,810.64 is: 43,226.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,208.48 : 109,838.88 = 28,810.64 : x
  2. Step 2: Convert to fraction form
    73,208.48/109,838.88 = 28,810.64/x
  3. Step 3: Cross multiply
    73,208.48x = 109,838.88 × 28,810.64
  4. Step 4: Simplify right side
    73,208.48x = 3,164,528,429.68
  5. Step 5: Solve for x
    x = 3,164,528,429.68/73,208.48
  6. Step 6: Final answer
    x = 43,226.26

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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.