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Finding the Fourth Proportional to 336,328.61, 504,406.95 and 99,615.93

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Solution

The fourth proportional to 336,328.61, 504,406.95 and 99,615.93 is: 149,398.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,328.61 : 504,406.95 = 99,615.93 : x
  2. Step 2: Convert to fraction form
    336,328.61/504,406.95 = 99,615.93/x
  3. Step 3: Cross multiply
    336,328.61x = 504,406.95 × 99,615.93
  4. Step 4: Simplify right side
    336,328.61x = 50,246,965,157.63
  5. Step 5: Solve for x
    x = 50,246,965,157.63/336,328.61
  6. Step 6: Final answer
    x = 149,398.43

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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.