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Finding the Fourth Proportional to 109,364.40, 150,960.48 and 64,056.96

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Solution

The fourth proportional to 109,364.40, 150,960.48 and 64,056.96 is: 88,420.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,364.40 : 150,960.48 = 64,056.96 : x
  2. Step 2: Convert to fraction form
    109,364.40/150,960.48 = 64,056.96/x
  3. Step 3: Cross multiply
    109,364.40x = 150,960.48 × 64,056.96
  4. Step 4: Simplify right side
    109,364.40x = 9,670,069,428.94
  5. Step 5: Solve for x
    x = 9,670,069,428.94/109,364.40
  6. Step 6: Final answer
    x = 88,420.63

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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.