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Finding the Fourth Proportional to 166,148.70, 249,223.05 and 147,777.90

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Solution

The fourth proportional to 166,148.70, 249,223.05 and 147,777.90 is: 221,666.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,148.70 : 249,223.05 = 147,777.90 : x
  2. Step 2: Convert to fraction form
    166,148.70/249,223.05 = 147,777.90/x
  3. Step 3: Cross multiply
    166,148.70x = 249,223.05 × 147,777.90
  4. Step 4: Simplify right side
    166,148.70x = 36,829,658,960.60
  5. Step 5: Solve for x
    x = 36,829,658,960.60/166,148.70
  6. Step 6: Final answer
    x = 221,666.85

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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.