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Finding the Fourth Proportional to 392,583.60, 588,875.40 and 112,064.40

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Solution

The fourth proportional to 392,583.60, 588,875.40 and 112,064.40 is: 168,096.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,583.60 : 588,875.40 = 112,064.40 : x
  2. Step 2: Convert to fraction form
    392,583.60/588,875.40 = 112,064.40/x
  3. Step 3: Cross multiply
    392,583.60x = 588,875.40 × 112,064.40
  4. Step 4: Simplify right side
    392,583.60x = 65,991,968,375.76
  5. Step 5: Solve for x
    x = 65,991,968,375.76/392,583.60
  6. Step 6: Final answer
    x = 168,096.60

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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.