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Finding the Fourth Proportional to 235,291.60, 352,937.40 and 66,811.60

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Solution

The fourth proportional to 235,291.60, 352,937.40 and 66,811.60 is: 100,217.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,291.60 : 352,937.40 = 66,811.60 : x
  2. Step 2: Convert to fraction form
    235,291.60/352,937.40 = 66,811.60/x
  3. Step 3: Cross multiply
    235,291.60x = 352,937.40 × 66,811.60
  4. Step 4: Simplify right side
    235,291.60x = 23,580,312,393.84
  5. Step 5: Solve for x
    x = 23,580,312,393.84/235,291.60
  6. Step 6: Final answer
    x = 100,217.40

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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.