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Finding the Fourth Proportional to 166,522.75, 249,866.13 and 77,763.35

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Solution

The fourth proportional to 166,522.75, 249,866.13 and 77,763.35 is: 116,683.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,522.75 : 249,866.13 = 77,763.35 : x
  2. Step 2: Convert to fraction form
    166,522.75/249,866.13 = 77,763.35/x
  3. Step 3: Cross multiply
    166,522.75x = 249,866.13 × 77,763.35
  4. Step 4: Simplify right side
    166,522.75x = 19,430,427,320.34
  5. Step 5: Solve for x
    x = 19,430,427,320.34/166,522.75
  6. Step 6: Final answer
    x = 116,683.32

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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.