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Finding the Fourth Proportional to 177,688.80, 266,187.60 and 98,661.60

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Solution

The fourth proportional to 177,688.80, 266,187.60 and 98,661.60 is: 147,800.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,688.80 : 266,187.60 = 98,661.60 : x
  2. Step 2: Convert to fraction form
    177,688.80/266,187.60 = 98,661.60/x
  3. Step 3: Cross multiply
    177,688.80x = 266,187.60 × 98,661.60
  4. Step 4: Simplify right side
    177,688.80x = 26,262,494,516.16
  5. Step 5: Solve for x
    x = 26,262,494,516.16/177,688.80
  6. Step 6: Final answer
    x = 147,800.51

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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.