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Finding the Fourth Proportional to 355,424.72, 533,164.56 and 118,768.24

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Solution

The fourth proportional to 355,424.72, 533,164.56 and 118,768.24 is: 178,161.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,424.72 : 533,164.56 = 118,768.24 : x
  2. Step 2: Convert to fraction form
    355,424.72/533,164.56 = 118,768.24/x
  3. Step 3: Cross multiply
    355,424.72x = 533,164.56 × 118,768.24
  4. Step 4: Simplify right side
    355,424.72x = 63,323,016,421.57
  5. Step 5: Solve for x
    x = 63,323,016,421.57/355,424.72
  6. Step 6: Final answer
    x = 178,161.54

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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.