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Finding the Fourth Proportional to 156,672.40, 235,008.60 and 45,864.40

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Solution

The fourth proportional to 156,672.40, 235,008.60 and 45,864.40 is: 68,796.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,672.40 : 235,008.60 = 45,864.40 : x
  2. Step 2: Convert to fraction form
    156,672.40/235,008.60 = 45,864.40/x
  3. Step 3: Cross multiply
    156,672.40x = 235,008.60 × 45,864.40
  4. Step 4: Simplify right side
    156,672.40x = 10,778,528,433.84
  5. Step 5: Solve for x
    x = 10,778,528,433.84/156,672.40
  6. Step 6: Final answer
    x = 68,796.60

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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.