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Finding the Fourth Proportional to 98,668,896.76, 147,943,413.06 and 49,427,483.68

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Solution

The fourth proportional to 98,668,896.76, 147,943,413.06 and 49,427,483.68 is: 74,111,202.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,668,896.76 : 147,943,413.06 = 49,427,483.68 : x
  2. Step 2: Convert to fraction form
    98,668,896.76/147,943,413.06 = 49,427,483.68/x
  3. Step 3: Cross multiply
    98,668,896.76x = 147,943,413.06 × 49,427,483.68
  4. Step 4: Simplify right side
    98,668,896.76x = 7,312,470,634,586,649
  5. Step 5: Solve for x
    x = 7,312,470,634,586,649/98,668,896.76
  6. Step 6: Final answer
    x = 74,111,202.97

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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.