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Finding the Fourth Proportional to 93,357.54, 128,811.26 and 53,068.14

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Solution

The fourth proportional to 93,357.54, 128,811.26 and 53,068.14 is: 73,221.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,357.54 : 128,811.26 = 53,068.14 : x
  2. Step 2: Convert to fraction form
    93,357.54/128,811.26 = 53,068.14/x
  3. Step 3: Cross multiply
    93,357.54x = 128,811.26 × 53,068.14
  4. Step 4: Simplify right side
    93,357.54x = 6,835,773,979.26
  5. Step 5: Solve for x
    x = 6,835,773,979.26/93,357.54
  6. Step 6: Final answer
    x = 73,221.44

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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.