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Finding the Fourth Proportional to 334,336.68, 501,508.26 and 85,018.68

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Solution

The fourth proportional to 334,336.68, 501,508.26 and 85,018.68 is: 127,528.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,336.68 : 501,508.26 = 85,018.68 : x
  2. Step 2: Convert to fraction form
    334,336.68/501,508.26 = 85,018.68/x
  3. Step 3: Cross multiply
    334,336.68x = 501,508.26 × 85,018.68
  4. Step 4: Simplify right side
    334,336.68x = 42,637,570,274.30
  5. Step 5: Solve for x
    x = 42,637,570,274.30/334,336.68
  6. Step 6: Final answer
    x = 127,528.84

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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.