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Finding the Fourth Proportional to 118,188.99, 176,361.67 and 105,451.18

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Solution

The fourth proportional to 118,188.99, 176,361.67 and 105,451.18 is: 157,354.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,188.99 : 176,361.67 = 105,451.18 : x
  2. Step 2: Convert to fraction form
    118,188.99/176,361.67 = 105,451.18/x
  3. Step 3: Cross multiply
    118,188.99x = 176,361.67 × 105,451.18
  4. Step 4: Simplify right side
    118,188.99x = 18,597,545,899.18
  5. Step 5: Solve for x
    x = 18,597,545,899.18/118,188.99
  6. Step 6: Final answer
    x = 157,354.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.