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Finding the Fourth Proportional to 306,009.16, 458,162.43 and 155,925.88

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Solution

The fourth proportional to 306,009.16, 458,162.43 and 155,925.88 is: 233,455.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,009.16 : 458,162.43 = 155,925.88 : x
  2. Step 2: Convert to fraction form
    306,009.16/458,162.43 = 155,925.88/x
  3. Step 3: Cross multiply
    306,009.16x = 458,162.43 × 155,925.88
  4. Step 4: Simplify right side
    306,009.16x = 71,439,380,080.69
  5. Step 5: Solve for x
    x = 71,439,380,080.69/306,009.16
  6. Step 6: Final answer
    x = 233,455.04

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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.