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Finding the Fourth Proportional to 180,057.90, 248,473.19 and 99,483.70

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Solution

The fourth proportional to 180,057.90, 248,473.19 and 99,483.70 is: 137,283.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,057.90 : 248,473.19 = 99,483.70 : x
  2. Step 2: Convert to fraction form
    180,057.90/248,473.19 = 99,483.70/x
  3. Step 3: Cross multiply
    180,057.90x = 248,473.19 × 99,483.70
  4. Step 4: Simplify right side
    180,057.90x = 24,719,030,552.22
  5. Step 5: Solve for x
    x = 24,719,030,552.22/180,057.90
  6. Step 6: Final answer
    x = 137,283.79

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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.