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Finding the Fourth Proportional to 105,334.46, 157,969.56 and 55,387.46

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Solution

The fourth proportional to 105,334.46, 157,969.56 and 55,387.46 is: 83,064.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,334.46 : 157,969.56 = 55,387.46 : x
  2. Step 2: Convert to fraction form
    105,334.46/157,969.56 = 55,387.46/x
  3. Step 3: Cross multiply
    105,334.46x = 157,969.56 × 55,387.46
  4. Step 4: Simplify right side
    105,334.46x = 8,749,532,685.72
  5. Step 5: Solve for x
    x = 8,749,532,685.72/105,334.46
  6. Step 6: Final answer
    x = 83,064.30

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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.