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Finding the Fourth Proportional to 157,613, 218,620.30 and 151,938.94

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Solution

The fourth proportional to 157,613, 218,620.30 and 151,938.94 is: 210,749.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,613 : 218,620.30 = 151,938.94 : x
  2. Step 2: Convert to fraction form
    157,613/218,620.30 = 151,938.94/x
  3. Step 3: Cross multiply
    157,613x = 218,620.30 × 151,938.94
  4. Step 4: Simplify right side
    157,613x = 33,216,936,644.48
  5. Step 5: Solve for x
    x = 33,216,936,644.48/157,613
  6. Step 6: Final answer
    x = 210,749.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.