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Finding the Fourth Proportional to 166,071.40, 249,107.10 and 112,927.30

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Solution

The fourth proportional to 166,071.40, 249,107.10 and 112,927.30 is: 169,390.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,071.40 : 249,107.10 = 112,927.30 : x
  2. Step 2: Convert to fraction form
    166,071.40/249,107.10 = 112,927.30/x
  3. Step 3: Cross multiply
    166,071.40x = 249,107.10 × 112,927.30
  4. Step 4: Simplify right side
    166,071.40x = 28,130,992,213.83
  5. Step 5: Solve for x
    x = 28,130,992,213.83/166,071.40
  6. Step 6: Final answer
    x = 169,390.95

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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.