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Finding the Fourth Proportional to 86,413.63, 119,148.81 and 59,202.76

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Solution

The fourth proportional to 86,413.63, 119,148.81 and 59,202.76 is: 81,629.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,413.63 : 119,148.81 = 59,202.76 : x
  2. Step 2: Convert to fraction form
    86,413.63/119,148.81 = 59,202.76/x
  3. Step 3: Cross multiply
    86,413.63x = 119,148.81 × 59,202.76
  4. Step 4: Simplify right side
    86,413.63x = 7,053,938,106.70
  5. Step 5: Solve for x
    x = 7,053,938,106.70/86,413.63
  6. Step 6: Final answer
    x = 81,629.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.