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Finding the Fourth Proportional to 372,603.18, 514,190.92 and 209,237.01

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Solution

The fourth proportional to 372,603.18, 514,190.92 and 209,237.01 is: 288,746.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,603.18 : 514,190.92 = 209,237.01 : x
  2. Step 2: Convert to fraction form
    372,603.18/514,190.92 = 209,237.01/x
  3. Step 3: Cross multiply
    372,603.18x = 514,190.92 × 209,237.01
  4. Step 4: Simplify right side
    372,603.18x = 107,587,771,662.92
  5. Step 5: Solve for x
    x = 107,587,771,662.92/372,603.18
  6. Step 6: Final answer
    x = 288,746.25

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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.