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Finding the Fourth Proportional to 193,885.60, 290,828.40 and 83,293.60

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Solution

The fourth proportional to 193,885.60, 290,828.40 and 83,293.60 is: 124,940.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,885.60 : 290,828.40 = 83,293.60 : x
  2. Step 2: Convert to fraction form
    193,885.60/290,828.40 = 83,293.60/x
  3. Step 3: Cross multiply
    193,885.60x = 290,828.40 × 83,293.60
  4. Step 4: Simplify right side
    193,885.60x = 24,224,144,418.24
  5. Step 5: Solve for x
    x = 24,224,144,418.24/193,885.60
  6. Step 6: Final answer
    x = 124,940.40

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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.