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Finding the Fourth Proportional to 93,328.29, 139,893.41 and 45,876.47

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Solution

The fourth proportional to 93,328.29, 139,893.41 and 45,876.47 is: 68,766.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,328.29 : 139,893.41 = 45,876.47 : x
  2. Step 2: Convert to fraction form
    93,328.29/139,893.41 = 45,876.47/x
  3. Step 3: Cross multiply
    93,328.29x = 139,893.41 × 45,876.47
  4. Step 4: Simplify right side
    93,328.29x = 6,417,815,827.06
  5. Step 5: Solve for x
    x = 6,417,815,827.06/93,328.29
  6. Step 6: Final answer
    x = 68,766.03

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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.