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Finding the Fourth Proportional to 162,783.30, 243,980.55 and 68,013.30

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Solution

The fourth proportional to 162,783.30, 243,980.55 and 68,013.30 is: 101,938.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,783.30 : 243,980.55 = 68,013.30 : x
  2. Step 2: Convert to fraction form
    162,783.30/243,980.55 = 68,013.30/x
  3. Step 3: Cross multiply
    162,783.30x = 243,980.55 × 68,013.30
  4. Step 4: Simplify right side
    162,783.30x = 16,593,922,341.32
  5. Step 5: Solve for x
    x = 16,593,922,341.32/162,783.30
  6. Step 6: Final answer
    x = 101,938.73

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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.