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Finding the Fourth Proportional to 102,712.60, 154,068.90 and 93,527.20

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Solution

The fourth proportional to 102,712.60, 154,068.90 and 93,527.20 is: 140,290.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,712.60 : 154,068.90 = 93,527.20 : x
  2. Step 2: Convert to fraction form
    102,712.60/154,068.90 = 93,527.20/x
  3. Step 3: Cross multiply
    102,712.60x = 154,068.90 × 93,527.20
  4. Step 4: Simplify right side
    102,712.60x = 14,409,632,824.08
  5. Step 5: Solve for x
    x = 14,409,632,824.08/102,712.60
  6. Step 6: Final answer
    x = 140,290.80

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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.