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Finding the Fourth Proportional to 102,600.60, 153,900.90 and 47,304.60

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Solution

The fourth proportional to 102,600.60, 153,900.90 and 47,304.60 is: 70,956.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,600.60 : 153,900.90 = 47,304.60 : x
  2. Step 2: Convert to fraction form
    102,600.60/153,900.90 = 47,304.60/x
  3. Step 3: Cross multiply
    102,600.60x = 153,900.90 × 47,304.60
  4. Step 4: Simplify right side
    102,600.60x = 7,280,220,514.14
  5. Step 5: Solve for x
    x = 7,280,220,514.14/102,600.60
  6. Step 6: Final answer
    x = 70,956.90

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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.