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Finding the Fourth Proportional to 180,987.94, 249,793.35 and 100,441.35

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Solution

The fourth proportional to 180,987.94, 249,793.35 and 100,441.35 is: 138,625.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,987.94 : 249,793.35 = 100,441.35 : x
  2. Step 2: Convert to fraction form
    180,987.94/249,793.35 = 100,441.35/x
  3. Step 3: Cross multiply
    180,987.94x = 249,793.35 × 100,441.35
  4. Step 4: Simplify right side
    180,987.94x = 25,089,581,295.02
  5. Step 5: Solve for x
    x = 25,089,581,295.02/180,987.94
  6. Step 6: Final answer
    x = 138,625.71

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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.