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Finding the Fourth Proportional to 188,312.32, 282,443.34 and 69,967.60

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Solution

The fourth proportional to 188,312.32, 282,443.34 and 69,967.60 is: 104,942.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,312.32 : 282,443.34 = 69,967.60 : x
  2. Step 2: Convert to fraction form
    188,312.32/282,443.34 = 69,967.60/x
  3. Step 3: Cross multiply
    188,312.32x = 282,443.34 × 69,967.60
  4. Step 4: Simplify right side
    188,312.32x = 19,761,882,635.78
  5. Step 5: Solve for x
    x = 19,761,882,635.78/188,312.32
  6. Step 6: Final answer
    x = 104,942.06

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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.