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Finding the Fourth Proportional to 352,561.32, 529,052.10 and 127,939.28

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Solution

The fourth proportional to 352,561.32, 529,052.10 and 127,939.28 is: 191,985.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,561.32 : 529,052.10 = 127,939.28 : x
  2. Step 2: Convert to fraction form
    352,561.32/529,052.10 = 127,939.28/x
  3. Step 3: Cross multiply
    352,561.32x = 529,052.10 × 127,939.28
  4. Step 4: Simplify right side
    352,561.32x = 67,686,544,756.49
  5. Step 5: Solve for x
    x = 67,686,544,756.49/352,561.32
  6. Step 6: Final answer
    x = 191,985.17

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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.