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Finding the Fourth Proportional to 119,798.28, 179,718.93 and 40,894.05

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Solution

The fourth proportional to 119,798.28, 179,718.93 and 40,894.05 is: 61,348.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,798.28 : 179,718.93 = 40,894.05 : x
  2. Step 2: Convert to fraction form
    119,798.28/179,718.93 = 40,894.05/x
  3. Step 3: Cross multiply
    119,798.28x = 179,718.93 × 40,894.05
  4. Step 4: Simplify right side
    119,798.28x = 7,349,434,909.37
  5. Step 5: Solve for x
    x = 7,349,434,909.37/119,798.28
  6. Step 6: Final answer
    x = 61,348.42

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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.