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Finding the Fourth Proportional to 166,590.64, 249,885.76 and 54,270.68

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Solution

The fourth proportional to 166,590.64, 249,885.76 and 54,270.68 is: 81,405.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,590.64 : 249,885.76 = 54,270.68 : x
  2. Step 2: Convert to fraction form
    166,590.64/249,885.76 = 54,270.68/x
  3. Step 3: Cross multiply
    166,590.64x = 249,885.76 × 54,270.68
  4. Step 4: Simplify right side
    166,590.64x = 13,561,470,117.52
  5. Step 5: Solve for x
    x = 13,561,470,117.52/166,590.64
  6. Step 6: Final answer
    x = 81,405.95

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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.