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Finding the Fourth Proportional to 299,176, 412,870.68 and 163,212.16

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Solution

The fourth proportional to 299,176, 412,870.68 and 163,212.16 is: 225,237.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,176 : 412,870.68 = 163,212.16 : x
  2. Step 2: Convert to fraction form
    299,176/412,870.68 = 163,212.16/x
  3. Step 3: Cross multiply
    299,176x = 412,870.68 × 163,212.16
  4. Step 4: Simplify right side
    299,176x = 67,385,515,483.47
  5. Step 5: Solve for x
    x = 67,385,515,483.47/299,176
  6. Step 6: Final answer
    x = 225,237.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.