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Finding the Fourth Proportional to 352,530.84, 528,683.94 and 115,818.60

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Solution

The fourth proportional to 352,530.84, 528,683.94 and 115,818.60 is: 173,691.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,530.84 : 528,683.94 = 115,818.60 : x
  2. Step 2: Convert to fraction form
    352,530.84/528,683.94 = 115,818.60/x
  3. Step 3: Cross multiply
    352,530.84x = 528,683.94 × 115,818.60
  4. Step 4: Simplify right side
    352,530.84x = 61,231,433,773.28
  5. Step 5: Solve for x
    x = 61,231,433,773.28/352,530.84
  6. Step 6: Final answer
    x = 173,691.00

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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.