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Finding the Fourth Proportional to 93,142.32, 139,588.86 and 45,684.84

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Solution

The fourth proportional to 93,142.32, 139,588.86 and 45,684.84 is: 68,466.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,142.32 : 139,588.86 = 45,684.84 : x
  2. Step 2: Convert to fraction form
    93,142.32/139,588.86 = 45,684.84/x
  3. Step 3: Cross multiply
    93,142.32x = 139,588.86 × 45,684.84
  4. Step 4: Simplify right side
    93,142.32x = 6,377,094,734.88
  5. Step 5: Solve for x
    x = 6,377,094,734.88/93,142.32
  6. Step 6: Final answer
    x = 68,466.14

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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.