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Finding the Fourth Proportional to 93,013.68, 139,367.16 and 53,603.92

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Solution

The fourth proportional to 93,013.68, 139,367.16 and 53,603.92 is: 80,317.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,013.68 : 139,367.16 = 53,603.92 : x
  2. Step 2: Convert to fraction form
    93,013.68/139,367.16 = 53,603.92/x
  3. Step 3: Cross multiply
    93,013.68x = 139,367.16 × 53,603.92
  4. Step 4: Simplify right side
    93,013.68x = 7,470,626,095.27
  5. Step 5: Solve for x
    x = 7,470,626,095.27/93,013.68
  6. Step 6: Final answer
    x = 80,317.50

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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.