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Finding the Fourth Proportional to 196,603.60, 295,124.10 and 121,808.20

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Solution

The fourth proportional to 196,603.60, 295,124.10 and 121,808.20 is: 182,847.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,603.60 : 295,124.10 = 121,808.20 : x
  2. Step 2: Convert to fraction form
    196,603.60/295,124.10 = 121,808.20/x
  3. Step 3: Cross multiply
    196,603.60x = 295,124.10 × 121,808.20
  4. Step 4: Simplify right side
    196,603.60x = 35,948,535,397.62
  5. Step 5: Solve for x
    x = 35,948,535,397.62/196,603.60
  6. Step 6: Final answer
    x = 182,847.80

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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.