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Finding the Fourth Proportional to 93,438.40, 140,287.20 and 58,446.40

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Solution

The fourth proportional to 93,438.40, 140,287.20 and 58,446.40 is: 87,750.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,438.40 : 140,287.20 = 58,446.40 : x
  2. Step 2: Convert to fraction form
    93,438.40/140,287.20 = 58,446.40/x
  3. Step 3: Cross multiply
    93,438.40x = 140,287.20 × 58,446.40
  4. Step 4: Simplify right side
    93,438.40x = 8,199,281,806.08
  5. Step 5: Solve for x
    x = 8,199,281,806.08/93,438.40
  6. Step 6: Final answer
    x = 87,750.67

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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.