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Finding the Fourth Proportional to 352,063.40, 528,095.10 and 115,413.80

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Solution

The fourth proportional to 352,063.40, 528,095.10 and 115,413.80 is: 173,120.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,063.40 : 528,095.10 = 115,413.80 : x
  2. Step 2: Convert to fraction form
    352,063.40/528,095.10 = 115,413.80/x
  3. Step 3: Cross multiply
    352,063.40x = 528,095.10 × 115,413.80
  4. Step 4: Simplify right side
    352,063.40x = 60,949,462,252.38
  5. Step 5: Solve for x
    x = 60,949,462,252.38/352,063.40
  6. Step 6: Final answer
    x = 173,120.70

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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.