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Finding the Fourth Proportional to 191,010.70, 286,516.05 and 157,768.30

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Solution

The fourth proportional to 191,010.70, 286,516.05 and 157,768.30 is: 236,652.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,010.70 : 286,516.05 = 157,768.30 : x
  2. Step 2: Convert to fraction form
    191,010.70/286,516.05 = 157,768.30/x
  3. Step 3: Cross multiply
    191,010.70x = 286,516.05 × 157,768.30
  4. Step 4: Simplify right side
    191,010.70x = 45,203,150,131.22
  5. Step 5: Solve for x
    x = 45,203,150,131.22/191,010.70
  6. Step 6: Final answer
    x = 236,652.45

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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.