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Finding the Fourth Proportional to 93,626.76, 129,192.64 and 55,893

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Solution

The fourth proportional to 93,626.76, 129,192.64 and 55,893 is: 77,125.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,626.76 : 129,192.64 = 55,893 : x
  2. Step 2: Convert to fraction form
    93,626.76/129,192.64 = 55,893/x
  3. Step 3: Cross multiply
    93,626.76x = 129,192.64 × 55,893
  4. Step 4: Simplify right side
    93,626.76x = 7,220,964,227.52
  5. Step 5: Solve for x
    x = 7,220,964,227.52/93,626.76
  6. Step 6: Final answer
    x = 77,125.00

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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.