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Finding the Fourth Proportional to 368,017.55, 552,025.63 and 115,317.40

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Solution

The fourth proportional to 368,017.55, 552,025.63 and 115,317.40 is: 172,975.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,017.55 : 552,025.63 = 115,317.40 : x
  2. Step 2: Convert to fraction form
    368,017.55/552,025.63 = 115,317.40/x
  3. Step 3: Cross multiply
    368,017.55x = 552,025.63 × 115,317.40
  4. Step 4: Simplify right side
    368,017.55x = 63,658,160,384.96
  5. Step 5: Solve for x
    x = 63,658,160,384.96/368,017.55
  6. Step 6: Final answer
    x = 172,975.88

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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.