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Finding the Fourth Proportional to 180,750.60, 249,435.96 and 100,176.60

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Solution

The fourth proportional to 180,750.60, 249,435.96 and 100,176.60 is: 138,243.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,750.60 : 249,435.96 = 100,176.60 : x
  2. Step 2: Convert to fraction form
    180,750.60/249,435.96 = 100,176.60/x
  3. Step 3: Cross multiply
    180,750.60x = 249,435.96 × 100,176.60
  4. Step 4: Simplify right side
    180,750.60x = 24,987,646,390.54
  5. Step 5: Solve for x
    x = 24,987,646,390.54/180,750.60
  6. Step 6: Final answer
    x = 138,243.78

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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.