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Finding the Fourth Proportional to 180,843.66, 249,560.01 and 100,270.44

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Solution

The fourth proportional to 180,843.66, 249,560.01 and 100,270.44 is: 138,370.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,843.66 : 249,560.01 = 100,270.44 : x
  2. Step 2: Convert to fraction form
    180,843.66/249,560.01 = 100,270.44/x
  3. Step 3: Cross multiply
    180,843.66x = 249,560.01 × 100,270.44
  4. Step 4: Simplify right side
    180,843.66x = 25,023,492,009.10
  5. Step 5: Solve for x
    x = 25,023,492,009.10/180,843.66
  6. Step 6: Final answer
    x = 138,370.86

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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.