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Finding the Fourth Proportional to 93,278.76, 139,916.70 and 23,158.68

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Solution

The fourth proportional to 93,278.76, 139,916.70 and 23,158.68 is: 34,737.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,278.76 : 139,916.70 = 23,158.68 : x
  2. Step 2: Convert to fraction form
    93,278.76/139,916.70 = 23,158.68/x
  3. Step 3: Cross multiply
    93,278.76x = 139,916.70 × 23,158.68
  4. Step 4: Simplify right side
    93,278.76x = 3,240,286,081.96
  5. Step 5: Solve for x
    x = 3,240,286,081.96/93,278.76
  6. Step 6: Final answer
    x = 34,737.66

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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.