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Finding the Fourth Proportional to 93,326.49, 128,785.91 and 53,034.93

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Solution

The fourth proportional to 93,326.49, 128,785.91 and 53,034.93 is: 73,185.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,326.49 : 128,785.91 = 53,034.93 : x
  2. Step 2: Convert to fraction form
    93,326.49/128,785.91 = 53,034.93/x
  3. Step 3: Cross multiply
    93,326.49x = 128,785.91 × 53,034.93
  4. Step 4: Simplify right side
    93,326.49x = 6,830,151,456.66
  5. Step 5: Solve for x
    x = 6,830,151,456.66/93,326.49
  6. Step 6: Final answer
    x = 73,185.56

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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.