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Finding the Fourth Proportional to 357,967.36, 536,615.70 and 121,144.24

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Solution

The fourth proportional to 357,967.36, 536,615.70 and 121,144.24 is: 181,602.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,967.36 : 536,615.70 = 121,144.24 : x
  2. Step 2: Convert to fraction form
    357,967.36/536,615.70 = 121,144.24/x
  3. Step 3: Cross multiply
    357,967.36x = 536,615.70 × 121,144.24
  4. Step 4: Simplify right side
    357,967.36x = 65,007,901,148.57
  5. Step 5: Solve for x
    x = 65,007,901,148.57/357,967.36
  6. Step 6: Final answer
    x = 181,602.87

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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.