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Finding the Fourth Proportional to 222,867.60, 333,847.80 and 138,368.40

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Solution

The fourth proportional to 222,867.60, 333,847.80 and 138,368.40 is: 207,270.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,867.60 : 333,847.80 = 138,368.40 : x
  2. Step 2: Convert to fraction form
    222,867.60/333,847.80 = 138,368.40/x
  3. Step 3: Cross multiply
    222,867.60x = 333,847.80 × 138,368.40
  4. Step 4: Simplify right side
    222,867.60x = 46,193,985,929.52
  5. Step 5: Solve for x
    x = 46,193,985,929.52/222,867.60
  6. Step 6: Final answer
    x = 207,270.98

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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.