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Finding the Fourth Proportional to 118,956.42, 178,467.58 and 54,934.12

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Solution

The fourth proportional to 118,956.42, 178,467.58 and 54,934.12 is: 82,416.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,956.42 : 178,467.58 = 54,934.12 : x
  2. Step 2: Convert to fraction form
    118,956.42/178,467.58 = 54,934.12/x
  3. Step 3: Cross multiply
    118,956.42x = 178,467.58 × 54,934.12
  4. Step 4: Simplify right side
    118,956.42x = 9,803,960,095.02
  5. Step 5: Solve for x
    x = 9,803,960,095.02/118,956.42
  6. Step 6: Final answer
    x = 82,416.40

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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.