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Finding the Fourth Proportional to 166,478.60, 249,717.90 and 163,713.80

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Solution

The fourth proportional to 166,478.60, 249,717.90 and 163,713.80 is: 245,570.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,478.60 : 249,717.90 = 163,713.80 : x
  2. Step 2: Convert to fraction form
    166,478.60/249,717.90 = 163,713.80/x
  3. Step 3: Cross multiply
    166,478.60x = 249,717.90 × 163,713.80
  4. Step 4: Simplify right side
    166,478.60x = 40,882,266,337.02
  5. Step 5: Solve for x
    x = 40,882,266,337.02/166,478.60
  6. Step 6: Final answer
    x = 245,570.70

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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.