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Finding the Fourth Proportional to 219,316.48, 328,818.96 and 94,693.12

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Solution

The fourth proportional to 219,316.48, 328,818.96 and 94,693.12 is: 141,972.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,316.48 : 328,818.96 = 94,693.12 : x
  2. Step 2: Convert to fraction form
    219,316.48/328,818.96 = 94,693.12/x
  3. Step 3: Cross multiply
    219,316.48x = 328,818.96 × 94,693.12
  4. Step 4: Simplify right side
    219,316.48x = 31,136,893,237.56
  5. Step 5: Solve for x
    x = 31,136,893,237.56/219,316.48
  6. Step 6: Final answer
    x = 141,972.43

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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.