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Finding the Fourth Proportional to 61,072.24, 91,473.02 and 46,928.16

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Solution

The fourth proportional to 61,072.24, 91,473.02 and 46,928.16 is: 70,288.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,072.24 : 91,473.02 = 46,928.16 : x
  2. Step 2: Convert to fraction form
    61,072.24/91,473.02 = 46,928.16/x
  3. Step 3: Cross multiply
    61,072.24x = 91,473.02 × 46,928.16
  4. Step 4: Simplify right side
    61,072.24x = 4,292,660,518.24
  5. Step 5: Solve for x
    x = 4,292,660,518.24/61,072.24
  6. Step 6: Final answer
    x = 70,288.24

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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.