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Finding the Fourth Proportional to 195,999.60, 293,999.40 and 140,703.60

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Solution

The fourth proportional to 195,999.60, 293,999.40 and 140,703.60 is: 211,055.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,999.60 : 293,999.40 = 140,703.60 : x
  2. Step 2: Convert to fraction form
    195,999.60/293,999.40 = 140,703.60/x
  3. Step 3: Cross multiply
    195,999.60x = 293,999.40 × 140,703.60
  4. Step 4: Simplify right side
    195,999.60x = 41,366,773,977.84
  5. Step 5: Solve for x
    x = 41,366,773,977.84/195,999.60
  6. Step 6: Final answer
    x = 211,055.40

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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.