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Finding the Fourth Proportional to 519,653.01, 779,545.13 and 164,540.10

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Solution

The fourth proportional to 519,653.01, 779,545.13 and 164,540.10 is: 246,830.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,653.01 : 779,545.13 = 164,540.10 : x
  2. Step 2: Convert to fraction form
    519,653.01/779,545.13 = 164,540.10/x
  3. Step 3: Cross multiply
    519,653.01x = 779,545.13 × 164,540.10
  4. Step 4: Simplify right side
    519,653.01x = 128,266,432,822.01
  5. Step 5: Solve for x
    x = 128,266,432,822.01/519,653.01
  6. Step 6: Final answer
    x = 246,830.92

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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.