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Finding the Fourth Proportional to 153,777.60, 211,898.16 and 113,427.54

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Solution

The fourth proportional to 153,777.60, 211,898.16 and 113,427.54 is: 156,297.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,777.60 : 211,898.16 = 113,427.54 : x
  2. Step 2: Convert to fraction form
    153,777.60/211,898.16 = 113,427.54/x
  3. Step 3: Cross multiply
    153,777.60x = 211,898.16 × 113,427.54
  4. Step 4: Simplify right side
    153,777.60x = 24,035,087,019.33
  5. Step 5: Solve for x
    x = 24,035,087,019.33/153,777.60
  6. Step 6: Final answer
    x = 156,297.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.