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Finding the Fourth Proportional to 134,479.93, 185,574.96 and 74,039.10

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Solution

The fourth proportional to 134,479.93, 185,574.96 and 74,039.10 is: 102,169.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,479.93 : 185,574.96 = 74,039.10 : x
  2. Step 2: Convert to fraction form
    134,479.93/185,574.96 = 74,039.10/x
  3. Step 3: Cross multiply
    134,479.93x = 185,574.96 × 74,039.10
  4. Step 4: Simplify right side
    134,479.93x = 13,739,803,020.94
  5. Step 5: Solve for x
    x = 13,739,803,020.94/134,479.93
  6. Step 6: Final answer
    x = 102,169.92

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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.