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Finding the Fourth Proportional to 166,103.70, 249,155.55 and 156,918.30

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Solution

The fourth proportional to 166,103.70, 249,155.55 and 156,918.30 is: 235,377.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,103.70 : 249,155.55 = 156,918.30 : x
  2. Step 2: Convert to fraction form
    166,103.70/249,155.55 = 156,918.30/x
  3. Step 3: Cross multiply
    166,103.70x = 249,155.55 × 156,918.30
  4. Step 4: Simplify right side
    166,103.70x = 39,097,065,341.57
  5. Step 5: Solve for x
    x = 39,097,065,341.57/166,103.70
  6. Step 6: Final answer
    x = 235,377.45

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1.5x scale

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.