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Finding the Fourth Proportional to 166,345.97, 249,696.50 and 71,623.04

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Solution

The fourth proportional to 166,345.97, 249,696.50 and 71,623.04 is: 107,511.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,345.97 : 249,696.50 = 71,623.04 : x
  2. Step 2: Convert to fraction form
    166,345.97/249,696.50 = 71,623.04/x
  3. Step 3: Cross multiply
    166,345.97x = 249,696.50 × 71,623.04
  4. Step 4: Simplify right side
    166,345.97x = 17,884,020,800.76
  5. Step 5: Solve for x
    x = 17,884,020,800.76/166,345.97
  6. Step 6: Final answer
    x = 107,511.00

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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.