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Finding the Fourth Proportional to 166,461.74, 249,717.47 and 61,272.71

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Solution

The fourth proportional to 166,461.74, 249,717.47 and 61,272.71 is: 91,918.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,461.74 : 249,717.47 = 61,272.71 : x
  2. Step 2: Convert to fraction form
    166,461.74/249,717.47 = 61,272.71/x
  3. Step 3: Cross multiply
    166,461.74x = 249,717.47 × 61,272.71
  4. Step 4: Simplify right side
    166,461.74x = 15,300,864,566.29
  5. Step 5: Solve for x
    x = 15,300,864,566.29/166,461.74
  6. Step 6: Final answer
    x = 91,918.21

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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.