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Finding the Fourth Proportional to 93,143, 139,727.64 and 29,941.94

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Solution

The fourth proportional to 93,143, 139,727.64 and 29,941.94 is: 44,917.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,143 : 139,727.64 = 29,941.94 : x
  2. Step 2: Convert to fraction form
    93,143/139,727.64 = 29,941.94/x
  3. Step 3: Cross multiply
    93,143x = 139,727.64 × 29,941.94
  4. Step 4: Simplify right side
    93,143x = 4,183,716,613.22
  5. Step 5: Solve for x
    x = 4,183,716,613.22/93,143
  6. Step 6: Final answer
    x = 44,917.13

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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.