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Finding the Fourth Proportional to 93,424.84, 128,930.46 and 52,603.02

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Solution

The fourth proportional to 93,424.84, 128,930.46 and 52,603.02 is: 72,594.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,424.84 : 128,930.46 = 52,603.02 : x
  2. Step 2: Convert to fraction form
    93,424.84/128,930.46 = 52,603.02/x
  3. Step 3: Cross multiply
    93,424.84x = 128,930.46 × 52,603.02
  4. Step 4: Simplify right side
    93,424.84x = 6,782,131,565.99
  5. Step 5: Solve for x
    x = 6,782,131,565.99/93,424.84
  6. Step 6: Final answer
    x = 72,594.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.