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Finding the Fourth Proportional to 372,689.37, 514,317.56 and 211,549.37

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Solution

The fourth proportional to 372,689.37, 514,317.56 and 211,549.37 is: 291,941.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,689.37 : 514,317.56 = 211,549.37 : x
  2. Step 2: Convert to fraction form
    372,689.37/514,317.56 = 211,549.37/x
  3. Step 3: Cross multiply
    372,689.37x = 514,317.56 × 211,549.37
  4. Step 4: Simplify right side
    372,689.37x = 108,803,552,168.60
  5. Step 5: Solve for x
    x = 108,803,552,168.60/372,689.37
  6. Step 6: Final answer
    x = 291,941.66

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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.