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Finding the Fourth Proportional to 180,755.97, 249,458.16 and 100,208.76

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Solution

The fourth proportional to 180,755.97, 249,458.16 and 100,208.76 is: 138,296.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,755.97 : 249,458.16 = 100,208.76 : x
  2. Step 2: Convert to fraction form
    180,755.97/249,458.16 = 100,208.76/x
  3. Step 3: Cross multiply
    180,755.97x = 249,458.16 × 100,208.76
  4. Step 4: Simplify right side
    180,755.97x = 24,997,892,885.48
  5. Step 5: Solve for x
    x = 24,997,892,885.48/180,755.97
  6. Step 6: Final answer
    x = 138,296.36

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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.