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Finding the Fourth Proportional to 101,971.36, 140,663.76 and 94,754.88

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Solution

The fourth proportional to 101,971.36, 140,663.76 and 94,754.88 is: 130,709.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,971.36 : 140,663.76 = 94,754.88 : x
  2. Step 2: Convert to fraction form
    101,971.36/140,663.76 = 94,754.88/x
  3. Step 3: Cross multiply
    101,971.36x = 140,663.76 × 94,754.88
  4. Step 4: Simplify right side
    101,971.36x = 13,328,577,699.15
  5. Step 5: Solve for x
    x = 13,328,577,699.15/101,971.36
  6. Step 6: Final answer
    x = 130,709.03

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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.