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Finding the Fourth Proportional to 166,110.60, 249,165.90 and 148,139.40

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Solution

The fourth proportional to 166,110.60, 249,165.90 and 148,139.40 is: 222,209.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,110.60 : 249,165.90 = 148,139.40 : x
  2. Step 2: Convert to fraction form
    166,110.60/249,165.90 = 148,139.40/x
  3. Step 3: Cross multiply
    166,110.60x = 249,165.90 × 148,139.40
  4. Step 4: Simplify right side
    166,110.60x = 36,911,286,926.46
  5. Step 5: Solve for x
    x = 36,911,286,926.46/166,110.60
  6. Step 6: Final answer
    x = 222,209.10

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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.