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Finding the Fourth Proportional to 116,690.40, 175,035.60 and 111,571.20

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Solution

The fourth proportional to 116,690.40, 175,035.60 and 111,571.20 is: 167,356.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,690.40 : 175,035.60 = 111,571.20 : x
  2. Step 2: Convert to fraction form
    116,690.40/175,035.60 = 111,571.20/x
  3. Step 3: Cross multiply
    116,690.40x = 175,035.60 × 111,571.20
  4. Step 4: Simplify right side
    116,690.40x = 19,528,931,934.72
  5. Step 5: Solve for x
    x = 19,528,931,934.72/116,690.40
  6. Step 6: Final answer
    x = 167,356.80

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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.