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Finding the Fourth Proportional to 102,705.60, 154,085.40 and 32,584.80

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Solution

The fourth proportional to 102,705.60, 154,085.40 and 32,584.80 is: 48,885.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,705.60 : 154,085.40 = 32,584.80 : x
  2. Step 2: Convert to fraction form
    102,705.60/154,085.40 = 32,584.80/x
  3. Step 3: Cross multiply
    102,705.60x = 154,085.40 × 32,584.80
  4. Step 4: Simplify right side
    102,705.60x = 5,020,841,941.92
  5. Step 5: Solve for x
    x = 5,020,841,941.92/102,705.60
  6. Step 6: Final answer
    x = 48,885.77

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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.