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Finding the Fourth Proportional to 364,008.60, 545,915.70 and 111,288.60

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Solution

The fourth proportional to 364,008.60, 545,915.70 and 111,288.60 is: 166,903.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,008.60 : 545,915.70 = 111,288.60 : x
  2. Step 2: Convert to fraction form
    364,008.60/545,915.70 = 111,288.60/x
  3. Step 3: Cross multiply
    364,008.60x = 545,915.70 × 111,288.60
  4. Step 4: Simplify right side
    364,008.60x = 60,754,193,971.02
  5. Step 5: Solve for x
    x = 60,754,193,971.02/364,008.60
  6. Step 6: Final answer
    x = 166,903.18

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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.