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Finding the Fourth Proportional to 220,851.60, 331,277.40 and 186,291.60

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Solution

The fourth proportional to 220,851.60, 331,277.40 and 186,291.60 is: 279,437.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,851.60 : 331,277.40 = 186,291.60 : x
  2. Step 2: Convert to fraction form
    220,851.60/331,277.40 = 186,291.60/x
  3. Step 3: Cross multiply
    220,851.60x = 331,277.40 × 186,291.60
  4. Step 4: Simplify right side
    220,851.60x = 61,714,196,889.84
  5. Step 5: Solve for x
    x = 61,714,196,889.84/220,851.60
  6. Step 6: Final answer
    x = 279,437.40

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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.