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Finding the Fourth Proportional to 201,091.80, 301,868.10 and 118,032.60

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Solution

The fourth proportional to 201,091.80, 301,868.10 and 118,032.60 is: 177,184.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,091.80 : 301,868.10 = 118,032.60 : x
  2. Step 2: Convert to fraction form
    201,091.80/301,868.10 = 118,032.60/x
  3. Step 3: Cross multiply
    201,091.80x = 301,868.10 × 118,032.60
  4. Step 4: Simplify right side
    201,091.80x = 35,630,276,700.06
  5. Step 5: Solve for x
    x = 35,630,276,700.06/201,091.80
  6. Step 6: Final answer
    x = 177,184.14

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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.