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Finding the Fourth Proportional to 101,695.50, 140,339.79 and 59,262.23

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Solution

The fourth proportional to 101,695.50, 140,339.79 and 59,262.23 is: 81,781.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,695.50 : 140,339.79 = 59,262.23 : x
  2. Step 2: Convert to fraction form
    101,695.50/140,339.79 = 59,262.23/x
  3. Step 3: Cross multiply
    101,695.50x = 140,339.79 × 59,262.23
  4. Step 4: Simplify right side
    101,695.50x = 8,316,849,263.98
  5. Step 5: Solve for x
    x = 8,316,849,263.98/101,695.50
  6. Step 6: Final answer
    x = 81,781.88

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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.