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Finding the Fourth Proportional to 180,638.89, 249,230.76 and 104,151.97

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Solution

The fourth proportional to 180,638.89, 249,230.76 and 104,151.97 is: 143,700.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,638.89 : 249,230.76 = 104,151.97 : x
  2. Step 2: Convert to fraction form
    180,638.89/249,230.76 = 104,151.97/x
  3. Step 3: Cross multiply
    180,638.89x = 249,230.76 × 104,151.97
  4. Step 4: Simplify right side
    180,638.89x = 25,957,874,638.60
  5. Step 5: Solve for x
    x = 25,957,874,638.60/180,638.89
  6. Step 6: Final answer
    x = 143,700.37

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1.5x scale

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.