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Finding the Fourth Proportional to 352,561.04, 529,051.70 and 127,939.01

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Solution

The fourth proportional to 352,561.04, 529,051.70 and 127,939.01 is: 191,984.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,561.04 : 529,051.70 = 127,939.01 : x
  2. Step 2: Convert to fraction form
    352,561.04/529,051.70 = 127,939.01/x
  3. Step 3: Cross multiply
    352,561.04x = 529,051.70 × 127,939.01
  4. Step 4: Simplify right side
    352,561.04x = 67,686,347,451.86
  5. Step 5: Solve for x
    x = 67,686,347,451.86/352,561.04
  6. Step 6: Final answer
    x = 191,984.76

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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.