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Finding the Fourth Proportional to 125,873.88, 188,678.58 and 63,413.40

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Solution

The fourth proportional to 125,873.88, 188,678.58 and 63,413.40 is: 95,053.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,873.88 : 188,678.58 = 63,413.40 : x
  2. Step 2: Convert to fraction form
    125,873.88/188,678.58 = 63,413.40/x
  3. Step 3: Cross multiply
    125,873.88x = 188,678.58 × 63,413.40
  4. Step 4: Simplify right side
    125,873.88x = 11,964,750,264.97
  5. Step 5: Solve for x
    x = 11,964,750,264.97/125,873.88
  6. Step 6: Final answer
    x = 95,053.48

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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.