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Finding the Fourth Proportional to 355,420.72, 533,158.56 and 118,764.22

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Solution

The fourth proportional to 355,420.72, 533,158.56 and 118,764.22 is: 178,155.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,420.72 : 533,158.56 = 118,764.22 : x
  2. Step 2: Convert to fraction form
    355,420.72/533,158.56 = 118,764.22/x
  3. Step 3: Cross multiply
    355,420.72x = 533,158.56 × 118,764.22
  4. Step 4: Simplify right side
    355,420.72x = 63,320,160,514.72
  5. Step 5: Solve for x
    x = 63,320,160,514.72/355,420.72
  6. Step 6: Final answer
    x = 178,155.51

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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.