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Finding the Fourth Proportional to 194,870.88, 291,916.56 and 89,545.44

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Solution

The fourth proportional to 194,870.88, 291,916.56 and 89,545.44 is: 134,139.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,870.88 : 291,916.56 = 89,545.44 : x
  2. Step 2: Convert to fraction form
    194,870.88/291,916.56 = 89,545.44/x
  3. Step 3: Cross multiply
    194,870.88x = 291,916.56 × 89,545.44
  4. Step 4: Simplify right side
    194,870.88x = 26,139,796,808.49
  5. Step 5: Solve for x
    x = 26,139,796,808.49/194,870.88
  6. Step 6: Final answer
    x = 134,139.06

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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.