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Finding the Fourth Proportional to 72,866.98, 100,622.25 and 46,057.06

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Solution

The fourth proportional to 72,866.98, 100,622.25 and 46,057.06 is: 63,600.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,866.98 : 100,622.25 = 46,057.06 : x
  2. Step 2: Convert to fraction form
    72,866.98/100,622.25 = 46,057.06/x
  3. Step 3: Cross multiply
    72,866.98x = 100,622.25 × 46,057.06
  4. Step 4: Simplify right side
    72,866.98x = 4,634,365,005.59
  5. Step 5: Solve for x
    x = 4,634,365,005.59/72,866.98
  6. Step 6: Final answer
    x = 63,600.34

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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.