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Finding the Fourth Proportional to 253,460.48, 349,770.24 and 140,276.48

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Solution

The fourth proportional to 253,460.48, 349,770.24 and 140,276.48 is: 193,578.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,460.48 : 349,770.24 = 140,276.48 : x
  2. Step 2: Convert to fraction form
    253,460.48/349,770.24 = 140,276.48/x
  3. Step 3: Cross multiply
    253,460.48x = 349,770.24 × 140,276.48
  4. Step 4: Simplify right side
    253,460.48x = 49,064,538,075.96
  5. Step 5: Solve for x
    x = 49,064,538,075.96/253,460.48
  6. Step 6: Final answer
    x = 193,578.65

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1.5x scale

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.