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Finding the Fourth Proportional to 180,489.60, 249,101.92 and 103,993.92

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Solution

The fourth proportional to 180,489.60, 249,101.92 and 103,993.92 is: 143,526.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,489.60 : 249,101.92 = 103,993.92 : x
  2. Step 2: Convert to fraction form
    180,489.60/249,101.92 = 103,993.92/x
  3. Step 3: Cross multiply
    180,489.60x = 249,101.92 × 103,993.92
  4. Step 4: Simplify right side
    180,489.60x = 25,905,086,023.07
  5. Step 5: Solve for x
    x = 25,905,086,023.07/180,489.60
  6. Step 6: Final answer
    x = 143,526.75

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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.