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Finding the Fourth Proportional to 166,289, 249,435.66 and 55,481

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Solution

The fourth proportional to 166,289, 249,435.66 and 55,481 is: 83,222.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,289 : 249,435.66 = 55,481 : x
  2. Step 2: Convert to fraction form
    166,289/249,435.66 = 55,481/x
  3. Step 3: Cross multiply
    166,289x = 249,435.66 × 55,481
  4. Step 4: Simplify right side
    166,289x = 13,838,939,852.46
  5. Step 5: Solve for x
    x = 13,838,939,852.46/166,289
  6. Step 6: Final answer
    x = 83,222.22

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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.