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Finding the Fourth Proportional to 139,155.96, 192,171.64 and 96,245.40

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Solution

The fourth proportional to 139,155.96, 192,171.64 and 96,245.40 is: 132,913.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,155.96 : 192,171.64 = 96,245.40 : x
  2. Step 2: Convert to fraction form
    139,155.96/192,171.64 = 96,245.40/x
  3. Step 3: Cross multiply
    139,155.96x = 192,171.64 × 96,245.40
  4. Step 4: Simplify right side
    139,155.96x = 18,495,636,360.46
  5. Step 5: Solve for x
    x = 18,495,636,360.46/139,155.96
  6. Step 6: Final answer
    x = 132,913.00

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1.5x scale

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.