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Finding the Fourth Proportional to 105,566.79, 158,352.85 and 30,687.63

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Solution

The fourth proportional to 105,566.79, 158,352.85 and 30,687.63 is: 46,032.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,566.79 : 158,352.85 = 30,687.63 : x
  2. Step 2: Convert to fraction form
    105,566.79/158,352.85 = 30,687.63/x
  3. Step 3: Cross multiply
    105,566.79x = 158,352.85 × 30,687.63
  4. Step 4: Simplify right side
    105,566.79x = 4,859,474,364.58
  5. Step 5: Solve for x
    x = 4,859,474,364.58/105,566.79
  6. Step 6: Final answer
    x = 46,032.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.