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Finding the Fourth Proportional to 118,808.98, 178,215.72 and 38,846.98

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Solution

The fourth proportional to 118,808.98, 178,215.72 and 38,846.98 is: 58,271.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,808.98 : 178,215.72 = 38,846.98 : x
  2. Step 2: Convert to fraction form
    118,808.98/178,215.72 = 38,846.98/x
  3. Step 3: Cross multiply
    118,808.98x = 178,215.72 × 38,846.98
  4. Step 4: Simplify right side
    118,808.98x = 6,923,142,510.53
  5. Step 5: Solve for x
    x = 6,923,142,510.53/118,808.98
  6. Step 6: Final answer
    x = 58,271.21

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1.5x scale

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.