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Finding the Fourth Proportional to 166,479.60, 249,719.40 and 165,442.80

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Solution

The fourth proportional to 166,479.60, 249,719.40 and 165,442.80 is: 248,164.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,479.60 : 249,719.40 = 165,442.80 : x
  2. Step 2: Convert to fraction form
    166,479.60/249,719.40 = 165,442.80/x
  3. Step 3: Cross multiply
    166,479.60x = 249,719.40 × 165,442.80
  4. Step 4: Simplify right side
    166,479.60x = 41,314,276,750.32
  5. Step 5: Solve for x
    x = 41,314,276,750.32/166,479.60
  6. Step 6: Final answer
    x = 248,164.20

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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.