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Finding the Fourth Proportional to 119,411.01, 164,718.77 and 74,621.25

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Solution

The fourth proportional to 119,411.01, 164,718.77 and 74,621.25 is: 102,934.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,411.01 : 164,718.77 = 74,621.25 : x
  2. Step 2: Convert to fraction form
    119,411.01/164,718.77 = 74,621.25/x
  3. Step 3: Cross multiply
    119,411.01x = 164,718.77 × 74,621.25
  4. Step 4: Simplify right side
    119,411.01x = 12,291,520,142.76
  5. Step 5: Solve for x
    x = 12,291,520,142.76/119,411.01
  6. Step 6: Final answer
    x = 102,934.56

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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.