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Finding the Fourth Proportional to 219,800.40, 329,697.02 and 70,038.68

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Solution

The fourth proportional to 219,800.40, 329,697.02 and 70,038.68 is: 105,056.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,800.40 : 329,697.02 = 70,038.68 : x
  2. Step 2: Convert to fraction form
    219,800.40/329,697.02 = 70,038.68/x
  3. Step 3: Cross multiply
    219,800.40x = 329,697.02 × 70,038.68
  4. Step 4: Simplify right side
    219,800.40x = 23,091,542,082.06
  5. Step 5: Solve for x
    x = 23,091,542,082.06/219,800.40
  6. Step 6: Final answer
    x = 105,056.87

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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.