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Finding the Fourth Proportional to 153,777.57, 212,300.24 and 100,035.69

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Solution

The fourth proportional to 153,777.57, 212,300.24 and 100,035.69 is: 138,105.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,777.57 : 212,300.24 = 100,035.69 : x
  2. Step 2: Convert to fraction form
    153,777.57/212,300.24 = 100,035.69/x
  3. Step 3: Cross multiply
    153,777.57x = 212,300.24 × 100,035.69
  4. Step 4: Simplify right side
    153,777.57x = 21,237,600,495.39
  5. Step 5: Solve for x
    x = 21,237,600,495.39/153,777.57
  6. Step 6: Final answer
    x = 138,105.97

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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.