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Finding the Fourth Proportional to 93,100.99, 128,479.01 and 52,822.53

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Solution

The fourth proportional to 93,100.99, 128,479.01 and 52,822.53 is: 72,894.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,100.99 : 128,479.01 = 52,822.53 : x
  2. Step 2: Convert to fraction form
    93,100.99/128,479.01 = 52,822.53/x
  3. Step 3: Cross multiply
    93,100.99x = 128,479.01 × 52,822.53
  4. Step 4: Simplify right side
    93,100.99x = 6,786,586,360.10
  5. Step 5: Solve for x
    x = 6,786,586,360.10/93,100.99
  6. Step 6: Final answer
    x = 72,894.89

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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.