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Finding the Fourth Proportional to 153,155.75, 211,323.93 and 89,481.23

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Solution

The fourth proportional to 153,155.75, 211,323.93 and 89,481.23 is: 123,465.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,155.75 : 211,323.93 = 89,481.23 : x
  2. Step 2: Convert to fraction form
    153,155.75/211,323.93 = 89,481.23/x
  3. Step 3: Cross multiply
    153,155.75x = 211,323.93 × 89,481.23
  4. Step 4: Simplify right side
    153,155.75x = 18,909,525,184.83
  5. Step 5: Solve for x
    x = 18,909,525,184.83/153,155.75
  6. Step 6: Final answer
    x = 123,465.98

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