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Finding the Fourth Proportional to 372,581.50, 514,162.53 and 202,816.90

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Solution

The fourth proportional to 372,581.50, 514,162.53 and 202,816.90 is: 279,887.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,581.50 : 514,162.53 = 202,816.90 : x
  2. Step 2: Convert to fraction form
    372,581.50/514,162.53 = 202,816.90/x
  3. Step 3: Cross multiply
    372,581.50x = 514,162.53 × 202,816.90
  4. Step 4: Simplify right side
    372,581.50x = 104,280,850,430.76
  5. Step 5: Solve for x
    x = 104,280,850,430.76/372,581.50
  6. Step 6: Final answer
    x = 279,887.35

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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.