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Finding the Fourth Proportional to 160,043.81, 239,985.73 and 53,390.64

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Solution

The fourth proportional to 160,043.81, 239,985.73 and 53,390.64 is: 80,059.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,043.81 : 239,985.73 = 53,390.64 : x
  2. Step 2: Convert to fraction form
    160,043.81/239,985.73 = 53,390.64/x
  3. Step 3: Cross multiply
    160,043.81x = 239,985.73 × 53,390.64
  4. Step 4: Simplify right side
    160,043.81x = 12,812,991,582.09
  5. Step 5: Solve for x
    x = 12,812,991,582.09/160,043.81
  6. Step 6: Final answer
    x = 80,059.27

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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.