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Finding the Fourth Proportional to 118,429.70, 177,644.55 and 102,532.10

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Solution

The fourth proportional to 118,429.70, 177,644.55 and 102,532.10 is: 153,798.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,429.70 : 177,644.55 = 102,532.10 : x
  2. Step 2: Convert to fraction form
    118,429.70/177,644.55 = 102,532.10/x
  3. Step 3: Cross multiply
    118,429.70x = 177,644.55 × 102,532.10
  4. Step 4: Simplify right side
    118,429.70x = 18,214,268,765.06
  5. Step 5: Solve for x
    x = 18,214,268,765.06/118,429.70
  6. Step 6: Final answer
    x = 153,798.15

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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.