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Finding the Fourth Proportional to 66,352.40, 99,413.40 and 62,205.20

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Solution

The fourth proportional to 66,352.40, 99,413.40 and 62,205.20 is: 93,199.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,352.40 : 99,413.40 = 62,205.20 : x
  2. Step 2: Convert to fraction form
    66,352.40/99,413.40 = 62,205.20/x
  3. Step 3: Cross multiply
    66,352.40x = 99,413.40 × 62,205.20
  4. Step 4: Simplify right side
    66,352.40x = 6,184,030,429.68
  5. Step 5: Solve for x
    x = 6,184,030,429.68/66,352.40
  6. Step 6: Final answer
    x = 93,199.80

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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.