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Finding the Fourth Proportional to 117,767.66, 176,510.80 and 42,800.03

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Solution

The fourth proportional to 117,767.66, 176,510.80 and 42,800.03 is: 64,148.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,767.66 : 176,510.80 = 42,800.03 : x
  2. Step 2: Convert to fraction form
    117,767.66/176,510.80 = 42,800.03/x
  3. Step 3: Cross multiply
    117,767.66x = 176,510.80 × 42,800.03
  4. Step 4: Simplify right side
    117,767.66x = 7,554,667,869.60
  5. Step 5: Solve for x
    x = 7,554,667,869.60/117,767.66
  6. Step 6: Final answer
    x = 64,148.92

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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.