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Finding the Fourth Proportional to 153,410.54, 230,154.17 and 121,939.34

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Solution

The fourth proportional to 153,410.54, 230,154.17 and 121,939.34 is: 182,939.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,410.54 : 230,154.17 = 121,939.34 : x
  2. Step 2: Convert to fraction form
    153,410.54/230,154.17 = 121,939.34/x
  3. Step 3: Cross multiply
    153,410.54x = 230,154.17 × 121,939.34
  4. Step 4: Simplify right side
    153,410.54x = 28,064,847,588.05
  5. Step 5: Solve for x
    x = 28,064,847,588.05/153,410.54
  6. Step 6: Final answer
    x = 182,939.50

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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.