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Finding the Fourth Proportional to 153,342.76, 230,112.55 and 74,413.93

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Solution

The fourth proportional to 153,342.76, 230,112.55 and 74,413.93 is: 111,668.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,342.76 : 230,112.55 = 74,413.93 : x
  2. Step 2: Convert to fraction form
    153,342.76/230,112.55 = 74,413.93/x
  3. Step 3: Cross multiply
    153,342.76x = 230,112.55 × 74,413.93
  4. Step 4: Simplify right side
    153,342.76x = 17,123,578,705.56
  5. Step 5: Solve for x
    x = 17,123,578,705.56/153,342.76
  6. Step 6: Final answer
    x = 111,668.65

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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.