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Finding the Fourth Proportional to 133,953.60, 200,930.40 and 102,460.80

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Solution

The fourth proportional to 133,953.60, 200,930.40 and 102,460.80 is: 153,691.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,953.60 : 200,930.40 = 102,460.80 : x
  2. Step 2: Convert to fraction form
    133,953.60/200,930.40 = 102,460.80/x
  3. Step 3: Cross multiply
    133,953.60x = 200,930.40 × 102,460.80
  4. Step 4: Simplify right side
    133,953.60x = 20,587,489,528.32
  5. Step 5: Solve for x
    x = 20,587,489,528.32/133,953.60
  6. Step 6: Final answer
    x = 153,691.20

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1.5x scale

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.