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Finding the Fourth Proportional to 253,433.20, 349,703.22 and 151,437.10

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Solution

The fourth proportional to 253,433.20, 349,703.22 and 151,437.10 is: 208,962.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,433.20 : 349,703.22 = 151,437.10 : x
  2. Step 2: Convert to fraction form
    253,433.20/349,703.22 = 151,437.10/x
  3. Step 3: Cross multiply
    253,433.20x = 349,703.22 × 151,437.10
  4. Step 4: Simplify right side
    253,433.20x = 52,958,041,497.46
  5. Step 5: Solve for x
    x = 52,958,041,497.46/253,433.20
  6. Step 6: Final answer
    x = 208,962.53

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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.