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Finding the Fourth Proportional to 163,069.29, 245,070.50 and 80,021.61

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Solution

The fourth proportional to 163,069.29, 245,070.50 and 80,021.61 is: 120,261.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,069.29 : 245,070.50 = 80,021.61 : x
  2. Step 2: Convert to fraction form
    163,069.29/245,070.50 = 80,021.61/x
  3. Step 3: Cross multiply
    163,069.29x = 245,070.50 × 80,021.61
  4. Step 4: Simplify right side
    163,069.29x = 19,610,935,973.51
  5. Step 5: Solve for x
    x = 19,610,935,973.51/163,069.29
  6. Step 6: Final answer
    x = 120,261.37

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