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Finding the Fourth Proportional to 104,706.24, 156,968.64 and 42,336.24

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Solution

The fourth proportional to 104,706.24, 156,968.64 and 42,336.24 is: 63,467.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,706.24 : 156,968.64 = 42,336.24 : x
  2. Step 2: Convert to fraction form
    104,706.24/156,968.64 = 42,336.24/x
  3. Step 3: Cross multiply
    104,706.24x = 156,968.64 × 42,336.24
  4. Step 4: Simplify right side
    104,706.24x = 6,645,462,015.51
  5. Step 5: Solve for x
    x = 6,645,462,015.51/104,706.24
  6. Step 6: Final answer
    x = 63,467.68

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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.