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Finding the Fourth Proportional to 197,295.40, 295,602.90 and 91,898.20

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Solution

The fourth proportional to 197,295.40, 295,602.90 and 91,898.20 is: 137,688.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,295.40 : 295,602.90 = 91,898.20 : x
  2. Step 2: Convert to fraction form
    197,295.40/295,602.90 = 91,898.20/x
  3. Step 3: Cross multiply
    197,295.40x = 295,602.90 × 91,898.20
  4. Step 4: Simplify right side
    197,295.40x = 27,165,374,424.78
  5. Step 5: Solve for x
    x = 27,165,374,424.78/197,295.40
  6. Step 6: Final answer
    x = 137,688.84

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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.