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Finding the Fourth Proportional to 118,936.40, 178,404.60 and 40,024.40

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Solution

The fourth proportional to 118,936.40, 178,404.60 and 40,024.40 is: 60,036.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,936.40 : 178,404.60 = 40,024.40 : x
  2. Step 2: Convert to fraction form
    118,936.40/178,404.60 = 40,024.40/x
  3. Step 3: Cross multiply
    118,936.40x = 178,404.60 × 40,024.40
  4. Step 4: Simplify right side
    118,936.40x = 7,140,537,072.24
  5. Step 5: Solve for x
    x = 7,140,537,072.24/118,936.40
  6. Step 6: Final answer
    x = 60,036.60

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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.