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Finding the Fourth Proportional to 212,501.80, 318,752.70 and 162,735.40

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Solution

The fourth proportional to 212,501.80, 318,752.70 and 162,735.40 is: 244,103.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,501.80 : 318,752.70 = 162,735.40 : x
  2. Step 2: Convert to fraction form
    212,501.80/318,752.70 = 162,735.40/x
  3. Step 3: Cross multiply
    212,501.80x = 318,752.70 × 162,735.40
  4. Step 4: Simplify right side
    212,501.80x = 51,872,348,135.58
  5. Step 5: Solve for x
    x = 51,872,348,135.58/212,501.80
  6. Step 6: Final answer
    x = 244,103.10

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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.