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Finding the Fourth Proportional to 197,284.40, 296,048.10 and 85,018.40

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Solution

The fourth proportional to 197,284.40, 296,048.10 and 85,018.40 is: 127,579.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,284.40 : 296,048.10 = 85,018.40 : x
  2. Step 2: Convert to fraction form
    197,284.40/296,048.10 = 85,018.40/x
  3. Step 3: Cross multiply
    197,284.40x = 296,048.10 × 85,018.40
  4. Step 4: Simplify right side
    197,284.40x = 25,169,535,785.04
  5. Step 5: Solve for x
    x = 25,169,535,785.04/197,284.40
  6. Step 6: Final answer
    x = 127,579.96

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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.