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Finding the Fourth Proportional to 102,574.40, 153,861.60 and 32,460.80

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Solution

The fourth proportional to 102,574.40, 153,861.60 and 32,460.80 is: 48,691.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,574.40 : 153,861.60 = 32,460.80 : x
  2. Step 2: Convert to fraction form
    102,574.40/153,861.60 = 32,460.80/x
  3. Step 3: Cross multiply
    102,574.40x = 153,861.60 × 32,460.80
  4. Step 4: Simplify right side
    102,574.40x = 4,994,470,625.28
  5. Step 5: Solve for x
    x = 4,994,470,625.28/102,574.40
  6. Step 6: Final answer
    x = 48,691.20

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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.