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Finding the Fourth Proportional to 93,187.89, 139,762.24 and 30,013.67

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Solution

The fourth proportional to 93,187.89, 139,762.24 and 30,013.67 is: 45,014.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,187.89 : 139,762.24 = 30,013.67 : x
  2. Step 2: Convert to fraction form
    93,187.89/139,762.24 = 30,013.67/x
  3. Step 3: Cross multiply
    93,187.89x = 139,762.24 × 30,013.67
  4. Step 4: Simplify right side
    93,187.89x = 4,194,778,024.19
  5. Step 5: Solve for x
    x = 4,194,778,024.19/93,187.89
  6. Step 6: Final answer
    x = 45,014.20

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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.