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Finding the Fourth Proportional to 141,221.60, 212,601.80 and 121,937.12

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Solution

The fourth proportional to 141,221.60, 212,601.80 and 121,937.12 is: 183,570.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,221.60 : 212,601.80 = 121,937.12 : x
  2. Step 2: Convert to fraction form
    141,221.60/212,601.80 = 121,937.12/x
  3. Step 3: Cross multiply
    141,221.60x = 212,601.80 × 121,937.12
  4. Step 4: Simplify right side
    141,221.60x = 25,924,051,198.82
  5. Step 5: Solve for x
    x = 25,924,051,198.82/141,221.60
  6. Step 6: Final answer
    x = 183,570.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.