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Finding the Fourth Proportional to 76,701.06, 105,846.21 and 43,167.06

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Solution

The fourth proportional to 76,701.06, 105,846.21 and 43,167.06 is: 59,569.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,701.06 : 105,846.21 = 43,167.06 : x
  2. Step 2: Convert to fraction form
    76,701.06/105,846.21 = 43,167.06/x
  3. Step 3: Cross multiply
    76,701.06x = 105,846.21 × 43,167.06
  4. Step 4: Simplify right side
    76,701.06x = 4,569,069,697.84
  5. Step 5: Solve for x
    x = 4,569,069,697.84/76,701.06
  6. Step 6: Final answer
    x = 59,569.84

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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.