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Finding the Fourth Proportional to 70,883.18, 106,324.90 and 66,552.92

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Solution

The fourth proportional to 70,883.18, 106,324.90 and 66,552.92 is: 99,829.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,883.18 : 106,324.90 = 66,552.92 : x
  2. Step 2: Convert to fraction form
    70,883.18/106,324.90 = 66,552.92/x
  3. Step 3: Cross multiply
    70,883.18x = 106,324.90 × 66,552.92
  4. Step 4: Simplify right side
    70,883.18x = 7,076,232,563.71
  5. Step 5: Solve for x
    x = 7,076,232,563.71/70,883.18
  6. Step 6: Final answer
    x = 99,829.50

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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.