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Finding the Fourth Proportional to 372,770.16, 558,314.04 and 172,670.16

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Solution

The fourth proportional to 372,770.16, 558,314.04 and 172,670.16 is: 258,615.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,770.16 : 558,314.04 = 172,670.16 : x
  2. Step 2: Convert to fraction form
    372,770.16/558,314.04 = 172,670.16/x
  3. Step 3: Cross multiply
    372,770.16x = 558,314.04 × 172,670.16
  4. Step 4: Simplify right side
    372,770.16x = 96,404,174,617.05
  5. Step 5: Solve for x
    x = 96,404,174,617.05/372,770.16
  6. Step 6: Final answer
    x = 258,615.59

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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.