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Finding the Fourth Proportional to 118,014.71, 176,812.16 and 67,991.44

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Solution

The fourth proportional to 118,014.71, 176,812.16 and 67,991.44 is: 101,866.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,014.71 : 176,812.16 = 67,991.44 : x
  2. Step 2: Convert to fraction form
    118,014.71/176,812.16 = 67,991.44/x
  3. Step 3: Cross multiply
    118,014.71x = 176,812.16 × 67,991.44
  4. Step 4: Simplify right side
    118,014.71x = 12,021,712,895.88
  5. Step 5: Solve for x
    x = 12,021,712,895.88/118,014.71
  6. Step 6: Final answer
    x = 101,866.23

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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.