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Finding the Fourth Proportional to 134,387.92, 185,457.76 and 73,958

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Solution

The fourth proportional to 134,387.92, 185,457.76 and 73,958 is: 102,063.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,387.92 : 185,457.76 = 73,958 : x
  2. Step 2: Convert to fraction form
    134,387.92/185,457.76 = 73,958/x
  3. Step 3: Cross multiply
    134,387.92x = 185,457.76 × 73,958
  4. Step 4: Simplify right side
    134,387.92x = 13,716,085,014.08
  5. Step 5: Solve for x
    x = 13,716,085,014.08/134,387.92
  6. Step 6: Final answer
    x = 102,063.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.