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Finding the Fourth Proportional to 166,641.30, 249,960.74 and 66,800.04

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Solution

The fourth proportional to 166,641.30, 249,960.74 and 66,800.04 is: 100,199.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,641.30 : 249,960.74 = 66,800.04 : x
  2. Step 2: Convert to fraction form
    166,641.30/249,960.74 = 66,800.04/x
  3. Step 3: Cross multiply
    166,641.30x = 249,960.74 × 66,800.04
  4. Step 4: Simplify right side
    166,641.30x = 16,697,387,430.43
  5. Step 5: Solve for x
    x = 16,697,387,430.43/166,641.30
  6. Step 6: Final answer
    x = 100,199.57

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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.