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Finding the Fourth Proportional to 201,688.10, 302,532.15 and 169,211.15

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Solution

The fourth proportional to 201,688.10, 302,532.15 and 169,211.15 is: 253,816.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,688.10 : 302,532.15 = 169,211.15 : x
  2. Step 2: Convert to fraction form
    201,688.10/302,532.15 = 169,211.15/x
  3. Step 3: Cross multiply
    201,688.10x = 302,532.15 × 169,211.15
  4. Step 4: Simplify right side
    201,688.10x = 51,191,813,013.47
  5. Step 5: Solve for x
    x = 51,191,813,013.47/201,688.10
  6. Step 6: Final answer
    x = 253,816.73

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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.