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Finding the Fourth Proportional to 166,071.60, 249,107.40 and 165,087.45

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Solution

The fourth proportional to 166,071.60, 249,107.40 and 165,087.45 is: 247,631.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,071.60 : 249,107.40 = 165,087.45 : x
  2. Step 2: Convert to fraction form
    166,071.60/249,107.40 = 165,087.45/x
  3. Step 3: Cross multiply
    166,071.60x = 249,107.40 × 165,087.45
  4. Step 4: Simplify right side
    166,071.60x = 41,124,505,442.13
  5. Step 5: Solve for x
    x = 41,124,505,442.13/166,071.60
  6. Step 6: Final answer
    x = 247,631.18

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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.