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Finding the Fourth Proportional to 166,878.87, 249,880.86 and 114,390.87

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Solution

The fourth proportional to 166,878.87, 249,880.86 and 114,390.87 is: 171,286.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,878.87 : 249,880.86 = 114,390.87 : x
  2. Step 2: Convert to fraction form
    166,878.87/249,880.86 = 114,390.87/x
  3. Step 3: Cross multiply
    166,878.87x = 249,880.86 × 114,390.87
  4. Step 4: Simplify right side
    166,878.87x = 28,584,088,971.75
  5. Step 5: Solve for x
    x = 28,584,088,971.75/166,878.87
  6. Step 6: Final answer
    x = 171,286.45

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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.