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Finding the Fourth Proportional to 101,859.04, 140,562.84 and 56,534.68

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Solution

The fourth proportional to 101,859.04, 140,562.84 and 56,534.68 is: 78,016.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,859.04 : 140,562.84 = 56,534.68 : x
  2. Step 2: Convert to fraction form
    101,859.04/140,562.84 = 56,534.68/x
  3. Step 3: Cross multiply
    101,859.04x = 140,562.84 × 56,534.68
  4. Step 4: Simplify right side
    101,859.04x = 7,946,675,179.29
  5. Step 5: Solve for x
    x = 7,946,675,179.29/101,859.04
  6. Step 6: Final answer
    x = 78,016.40

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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.