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Finding the Fourth Proportional to 191,107.90, 286,880.55 and 112,266.55

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Solution

The fourth proportional to 191,107.90, 286,880.55 and 112,266.55 is: 168,528.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,107.90 : 286,880.55 = 112,266.55 : x
  2. Step 2: Convert to fraction form
    191,107.90/286,880.55 = 112,266.55/x
  3. Step 3: Cross multiply
    191,107.90x = 286,880.55 × 112,266.55
  4. Step 4: Simplify right side
    191,107.90x = 32,207,089,610.60
  5. Step 5: Solve for x
    x = 32,207,089,610.60/191,107.90
  6. Step 6: Final answer
    x = 168,528.30

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1.5x scale

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.