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Finding the Fourth Proportional to 93,615.89, 140,437.10 and 30,415.79

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Solution

The fourth proportional to 93,615.89, 140,437.10 and 30,415.79 is: 45,627.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,615.89 : 140,437.10 = 30,415.79 : x
  2. Step 2: Convert to fraction form
    93,615.89/140,437.10 = 30,415.79/x
  3. Step 3: Cross multiply
    93,615.89x = 140,437.10 × 30,415.79
  4. Step 4: Simplify right side
    93,615.89x = 4,271,505,341.81
  5. Step 5: Solve for x
    x = 4,271,505,341.81/93,615.89
  6. Step 6: Final answer
    x = 45,627.99

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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.