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Finding the Fourth Proportional to 276,897.91, 382,120.86 and 162,244.30

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Solution

The fourth proportional to 276,897.91, 382,120.86 and 162,244.30 is: 223,898.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,897.91 : 382,120.86 = 162,244.30 : x
  2. Step 2: Convert to fraction form
    276,897.91/382,120.86 = 162,244.30/x
  3. Step 3: Cross multiply
    276,897.91x = 382,120.86 × 162,244.30
  4. Step 4: Simplify right side
    276,897.91x = 61,996,931,446.10
  5. Step 5: Solve for x
    x = 61,996,931,446.10/276,897.91
  6. Step 6: Final answer
    x = 223,898.16

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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.