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Finding the Fourth Proportional to 253,670.48, 350,068.20 and 140,495.12

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Solution

The fourth proportional to 253,670.48, 350,068.20 and 140,495.12 is: 193,884.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,670.48 : 350,068.20 = 140,495.12 : x
  2. Step 2: Convert to fraction form
    253,670.48/350,068.20 = 140,495.12/x
  3. Step 3: Cross multiply
    253,670.48x = 350,068.20 × 140,495.12
  4. Step 4: Simplify right side
    253,670.48x = 49,182,873,767.18
  5. Step 5: Solve for x
    x = 49,182,873,767.18/253,670.48
  6. Step 6: Final answer
    x = 193,884.89

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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.