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Finding the Fourth Proportional to 162,966.30, 224,889.48 and 90,368.79

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Solution

The fourth proportional to 162,966.30, 224,889.48 and 90,368.79 is: 124,706.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,966.30 : 224,889.48 = 90,368.79 : x
  2. Step 2: Convert to fraction form
    162,966.30/224,889.48 = 90,368.79/x
  3. Step 3: Cross multiply
    162,966.30x = 224,889.48 × 90,368.79
  4. Step 4: Simplify right side
    162,966.30x = 20,322,990,191.33
  5. Step 5: Solve for x
    x = 20,322,990,191.33/162,966.30
  6. Step 6: Final answer
    x = 124,706.70

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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.