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Finding the Fourth Proportional to 109,236.64, 163,688.04 and 73,566.07

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Solution

The fourth proportional to 109,236.64, 163,688.04 and 73,566.07 is: 110,236.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,236.64 : 163,688.04 = 73,566.07 : x
  2. Step 2: Convert to fraction form
    109,236.64/163,688.04 = 73,566.07/x
  3. Step 3: Cross multiply
    109,236.64x = 163,688.04 × 73,566.07
  4. Step 4: Simplify right side
    109,236.64x = 12,041,884,990.36
  5. Step 5: Solve for x
    x = 12,041,884,990.36/109,236.64
  6. Step 6: Final answer
    x = 110,236.68

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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.