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Finding the Fourth Proportional to 166,807.70, 249,871.35 and 103,433.30

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Solution

The fourth proportional to 166,807.70, 249,871.35 and 103,433.30 is: 154,939.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,807.70 : 249,871.35 = 103,433.30 : x
  2. Step 2: Convert to fraction form
    166,807.70/249,871.35 = 103,433.30/x
  3. Step 3: Cross multiply
    166,807.70x = 249,871.35 × 103,433.30
  4. Step 4: Simplify right side
    166,807.70x = 25,845,018,305.96
  5. Step 5: Solve for x
    x = 25,845,018,305.96/166,807.70
  6. Step 6: Final answer
    x = 154,939.00

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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.