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Finding the Fourth Proportional to 179,889.95, 248,243.19 and 99,316.01

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Solution

The fourth proportional to 179,889.95, 248,243.19 and 99,316.01 is: 137,053.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,889.95 : 248,243.19 = 99,316.01 : x
  2. Step 2: Convert to fraction form
    179,889.95/248,243.19 = 99,316.01/x
  3. Step 3: Cross multiply
    179,889.95x = 248,243.19 × 99,316.01
  4. Step 4: Simplify right side
    179,889.95x = 24,654,523,140.47
  5. Step 5: Solve for x
    x = 24,654,523,140.47/179,889.95
  6. Step 6: Final answer
    x = 137,053.37

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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.