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Finding the Fourth Proportional to 121,543.60, 182,315.40 and 104,922.40

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Solution

The fourth proportional to 121,543.60, 182,315.40 and 104,922.40 is: 157,383.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,543.60 : 182,315.40 = 104,922.40 : x
  2. Step 2: Convert to fraction form
    121,543.60/182,315.40 = 104,922.40/x
  3. Step 3: Cross multiply
    121,543.60x = 182,315.40 × 104,922.40
  4. Step 4: Simplify right side
    121,543.60x = 19,128,969,324.96
  5. Step 5: Solve for x
    x = 19,128,969,324.96/121,543.60
  6. Step 6: Final answer
    x = 157,383.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.