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Finding the Fourth Proportional to 93,335.20, 139,986.60 and 34,140.40

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Solution

The fourth proportional to 93,335.20, 139,986.60 and 34,140.40 is: 51,204.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,335.20 : 139,986.60 = 34,140.40 : x
  2. Step 2: Convert to fraction form
    93,335.20/139,986.60 = 34,140.40/x
  3. Step 3: Cross multiply
    93,335.20x = 139,986.60 × 34,140.40
  4. Step 4: Simplify right side
    93,335.20x = 4,779,198,518.64
  5. Step 5: Solve for x
    x = 4,779,198,518.64/93,335.20
  6. Step 6: Final answer
    x = 51,204.67

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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.