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Finding the Fourth Proportional to 372,803.32, 514,474.50 and 211,655.08

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Solution

The fourth proportional to 372,803.32, 514,474.50 and 211,655.08 is: 292,087.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,803.32 : 514,474.50 = 211,655.08 : x
  2. Step 2: Convert to fraction form
    372,803.32/514,474.50 = 211,655.08/x
  3. Step 3: Cross multiply
    372,803.32x = 514,474.50 × 211,655.08
  4. Step 4: Simplify right side
    372,803.32x = 108,891,141,455.46
  5. Step 5: Solve for x
    x = 108,891,141,455.46/372,803.32
  6. Step 6: Final answer
    x = 292,087.37

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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.