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Finding the Fourth Proportional to 372,893.88, 514,590.93 and 203,128.01

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Solution

The fourth proportional to 372,893.88, 514,590.93 and 203,128.01 is: 280,315.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,893.88 : 514,590.93 = 203,128.01 : x
  2. Step 2: Convert to fraction form
    372,893.88/514,590.93 = 203,128.01/x
  3. Step 3: Cross multiply
    372,893.88x = 514,590.93 × 203,128.01
  4. Step 4: Simplify right side
    372,893.88x = 104,527,829,002.00
  5. Step 5: Solve for x
    x = 104,527,829,002.00/372,893.88
  6. Step 6: Final answer
    x = 280,315.22

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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.