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Finding the Fourth Proportional to 306,987.48, 459,630.96 and 156,904.56

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Solution

The fourth proportional to 306,987.48, 459,630.96 and 156,904.56 is: 234,922.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,987.48 : 459,630.96 = 156,904.56 : x
  2. Step 2: Convert to fraction form
    306,987.48/459,630.96 = 156,904.56/x
  3. Step 3: Cross multiply
    306,987.48x = 459,630.96 × 156,904.56
  4. Step 4: Simplify right side
    306,987.48x = 72,118,193,541.18
  5. Step 5: Solve for x
    x = 72,118,193,541.18/306,987.48
  6. Step 6: Final answer
    x = 234,922.26

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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.