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Finding the Fourth Proportional to 306,622.32, 459,386.28 and 166,291.44

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Solution

The fourth proportional to 306,622.32, 459,386.28 and 166,291.44 is: 249,140.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,622.32 : 459,386.28 = 166,291.44 : x
  2. Step 2: Convert to fraction form
    306,622.32/459,386.28 = 166,291.44/x
  3. Step 3: Cross multiply
    306,622.32x = 459,386.28 × 166,291.44
  4. Step 4: Simplify right side
    306,622.32x = 76,392,006,017.44
  5. Step 5: Solve for x
    x = 76,392,006,017.44/306,622.32
  6. Step 6: Final answer
    x = 249,140.40

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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.