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Finding the Fourth Proportional to 186,117.60, 279,867.60 and 155,704.80

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Solution

The fourth proportional to 186,117.60, 279,867.60 and 155,704.80 is: 234,135.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,117.60 : 279,867.60 = 155,704.80 : x
  2. Step 2: Convert to fraction form
    186,117.60/279,867.60 = 155,704.80/x
  3. Step 3: Cross multiply
    186,117.60x = 279,867.60 × 155,704.80
  4. Step 4: Simplify right side
    186,117.60x = 43,576,728,684.48
  5. Step 5: Solve for x
    x = 43,576,728,684.48/186,117.60
  6. Step 6: Final answer
    x = 234,135.45

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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.