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Finding the Fourth Proportional to 166,477.72, 249,599.76 and 61,283.20

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Solution

The fourth proportional to 166,477.72, 249,599.76 and 61,283.20 is: 91,881.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,477.72 : 249,599.76 = 61,283.20 : x
  2. Step 2: Convert to fraction form
    166,477.72/249,599.76 = 61,283.20/x
  3. Step 3: Cross multiply
    166,477.72x = 249,599.76 × 61,283.20
  4. Step 4: Simplify right side
    166,477.72x = 15,296,272,012.03
  5. Step 5: Solve for x
    x = 15,296,272,012.03/166,477.72
  6. Step 6: Final answer
    x = 91,881.80

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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.