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Finding the Fourth Proportional to 195,881.60, 293,822.40 and 85,289.60

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Solution

The fourth proportional to 195,881.60, 293,822.40 and 85,289.60 is: 127,934.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,881.60 : 293,822.40 = 85,289.60 : x
  2. Step 2: Convert to fraction form
    195,881.60/293,822.40 = 85,289.60/x
  3. Step 3: Cross multiply
    195,881.60x = 293,822.40 × 85,289.60
  4. Step 4: Simplify right side
    195,881.60x = 25,059,994,967.04
  5. Step 5: Solve for x
    x = 25,059,994,967.04/195,881.60
  6. Step 6: Final answer
    x = 127,934.40

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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.