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Finding the Fourth Proportional to 134,661.20, 188,875.60 and 134,661.20

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Solution

The fourth proportional to 134,661.20, 188,875.60 and 134,661.20 is: 188,875.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,661.20 : 188,875.60 = 134,661.20 : x
  2. Step 2: Convert to fraction form
    134,661.20/188,875.60 = 134,661.20/x
  3. Step 3: Cross multiply
    134,661.20x = 188,875.60 × 134,661.20
  4. Step 4: Simplify right side
    134,661.20x = 25,434,214,946.72
  5. Step 5: Solve for x
    x = 25,434,214,946.72/134,661.20
  6. Step 6: Final answer
    x = 188,875.60

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.