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Finding the Fourth Proportional to 93,985,513.68, 140,978,076.68 and 53,026,359.31

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Solution

The fourth proportional to 93,985,513.68, 140,978,076.68 and 53,026,359.31 is: 79,539,429.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,985,513.68 : 140,978,076.68 = 53,026,359.31 : x
  2. Step 2: Convert to fraction form
    93,985,513.68/140,978,076.68 = 53,026,359.31/x
  3. Step 3: Cross multiply
    93,985,513.68x = 140,978,076.68 × 53,026,359.31
  4. Step 4: Simplify right side
    93,985,513.68x = 7,475,554,147,896,390
  5. Step 5: Solve for x
    x = 7,475,554,147,896,390/93,985,513.68
  6. Step 6: Final answer
    x = 79,539,429.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.