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Finding the Fourth Proportional to 334,989.52, 502,501.56 and 85,673.68

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Solution

The fourth proportional to 334,989.52, 502,501.56 and 85,673.68 is: 128,514.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,989.52 : 502,501.56 = 85,673.68 : x
  2. Step 2: Convert to fraction form
    334,989.52/502,501.56 = 85,673.68/x
  3. Step 3: Cross multiply
    334,989.52x = 502,501.56 × 85,673.68
  4. Step 4: Simplify right side
    334,989.52x = 43,051,157,850.94
  5. Step 5: Solve for x
    x = 43,051,157,850.94/334,989.52
  6. Step 6: Final answer
    x = 128,514.94

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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.