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Finding the Fourth Proportional to 70,007.80, 104,865.90 and 70,007.80

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Solution

The fourth proportional to 70,007.80, 104,865.90 and 70,007.80 is: 104,865.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,007.80 : 104,865.90 = 70,007.80 : x
  2. Step 2: Convert to fraction form
    70,007.80/104,865.90 = 70,007.80/x
  3. Step 3: Cross multiply
    70,007.80x = 104,865.90 × 70,007.80
  4. Step 4: Simplify right side
    70,007.80x = 7,341,430,954.02
  5. Step 5: Solve for x
    x = 7,341,430,954.02/70,007.80
  6. Step 6: Final answer
    x = 104,865.90

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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.