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Finding the Fourth Proportional to 328,068.52, 492,098.46 and 91,412.44

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Solution

The fourth proportional to 328,068.52, 492,098.46 and 91,412.44 is: 137,117.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,068.52 : 492,098.46 = 91,412.44 : x
  2. Step 2: Convert to fraction form
    328,068.52/492,098.46 = 91,412.44/x
  3. Step 3: Cross multiply
    328,068.52x = 492,098.46 × 91,412.44
  4. Step 4: Simplify right side
    328,068.52x = 44,983,920,948.84
  5. Step 5: Solve for x
    x = 44,983,920,948.84/328,068.52
  6. Step 6: Final answer
    x = 137,117.46

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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.