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Finding the Fourth Proportional to 166,157.96, 249,271.50 and 72,638.60

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Solution

The fourth proportional to 166,157.96, 249,271.50 and 72,638.60 is: 108,973.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,157.96 : 249,271.50 = 72,638.60 : x
  2. Step 2: Convert to fraction form
    166,157.96/249,271.50 = 72,638.60/x
  3. Step 3: Cross multiply
    166,157.96x = 249,271.50 × 72,638.60
  4. Step 4: Simplify right side
    166,157.96x = 18,106,732,779.90
  5. Step 5: Solve for x
    x = 18,106,732,779.90/166,157.96
  6. Step 6: Final answer
    x = 108,973.01

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.