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Finding the Fourth Proportional to 152,436.60, 228,654.90 and 47,266.20

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Solution

The fourth proportional to 152,436.60, 228,654.90 and 47,266.20 is: 70,899.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,436.60 : 228,654.90 = 47,266.20 : x
  2. Step 2: Convert to fraction form
    152,436.60/228,654.90 = 47,266.20/x
  3. Step 3: Cross multiply
    152,436.60x = 228,654.90 × 47,266.20
  4. Step 4: Simplify right side
    152,436.60x = 10,807,648,234.38
  5. Step 5: Solve for x
    x = 10,807,648,234.38/152,436.60
  6. Step 6: Final answer
    x = 70,899.30

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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.