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Finding the Fourth Proportional to 166,475, 249,712.50 and 49,739

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Solution

The fourth proportional to 166,475, 249,712.50 and 49,739 is: 74,608.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,475 : 249,712.50 = 49,739 : x
  2. Step 2: Convert to fraction form
    166,475/249,712.50 = 49,739/x
  3. Step 3: Cross multiply
    166,475x = 249,712.50 × 49,739
  4. Step 4: Simplify right side
    166,475x = 12,420,450,037.50
  5. Step 5: Solve for x
    x = 12,420,450,037.50/166,475
  6. Step 6: Final answer
    x = 74,608.50

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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.