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Finding the Fourth Proportional to 133,047.60, 199,571.40 and 118,613.40

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Solution

The fourth proportional to 133,047.60, 199,571.40 and 118,613.40 is: 177,920.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,047.60 : 199,571.40 = 118,613.40 : x
  2. Step 2: Convert to fraction form
    133,047.60/199,571.40 = 118,613.40/x
  3. Step 3: Cross multiply
    133,047.60x = 199,571.40 × 118,613.40
  4. Step 4: Simplify right side
    133,047.60x = 23,671,842,296.76
  5. Step 5: Solve for x
    x = 23,671,842,296.76/133,047.60
  6. Step 6: Final answer
    x = 177,920.10

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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.