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Finding the Fourth Proportional to 93,393.26, 128,877.44 and 53,116.82

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Solution

The fourth proportional to 93,393.26, 128,877.44 and 53,116.82 is: 73,298.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,393.26 : 128,877.44 = 53,116.82 : x
  2. Step 2: Convert to fraction form
    93,393.26/128,877.44 = 53,116.82/x
  3. Step 3: Cross multiply
    93,393.26x = 128,877.44 × 53,116.82
  4. Step 4: Simplify right side
    93,393.26x = 6,845,559,782.54
  5. Step 5: Solve for x
    x = 6,845,559,782.54/93,393.26
  6. Step 6: Final answer
    x = 73,298.22

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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.