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Finding the Fourth Proportional to 352,061.64, 528,083.74 and 102,745.80

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Solution

The fourth proportional to 352,061.64, 528,083.74 and 102,745.80 is: 154,116.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,061.64 : 528,083.74 = 102,745.80 : x
  2. Step 2: Convert to fraction form
    352,061.64/528,083.74 = 102,745.80/x
  3. Step 3: Cross multiply
    352,061.64x = 528,083.74 × 102,745.80
  4. Step 4: Simplify right side
    352,061.64x = 54,258,386,333.29
  5. Step 5: Solve for x
    x = 54,258,386,333.29/352,061.64
  6. Step 6: Final answer
    x = 154,116.16

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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.