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Finding the Fourth Proportional to 93,651.51, 129,222.23 and 55,392

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Solution

The fourth proportional to 93,651.51, 129,222.23 and 55,392 is: 76,430.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,651.51 : 129,222.23 = 55,392 : x
  2. Step 2: Convert to fraction form
    93,651.51/129,222.23 = 55,392/x
  3. Step 3: Cross multiply
    93,651.51x = 129,222.23 × 55,392
  4. Step 4: Simplify right side
    93,651.51x = 7,157,877,764.16
  5. Step 5: Solve for x
    x = 7,157,877,764.16/93,651.51
  6. Step 6: Final answer
    x = 76,430.99

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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.