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Finding the Fourth Proportional to 77,295.67, 106,666.17 and 43,305.23

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Solution

The fourth proportional to 77,295.67, 106,666.17 and 43,305.23 is: 59,760.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,295.67 : 106,666.17 = 43,305.23 : x
  2. Step 2: Convert to fraction form
    77,295.67/106,666.17 = 43,305.23/x
  3. Step 3: Cross multiply
    77,295.67x = 106,666.17 × 43,305.23
  4. Step 4: Simplify right side
    77,295.67x = 4,619,203,129.34
  5. Step 5: Solve for x
    x = 4,619,203,129.34/77,295.67
  6. Step 6: Final answer
    x = 59,760.18

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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.