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Finding the Fourth Proportional to 166,355.70, 249,533.55 and 91,446.90

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Solution

The fourth proportional to 166,355.70, 249,533.55 and 91,446.90 is: 137,170.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,355.70 : 249,533.55 = 91,446.90 : x
  2. Step 2: Convert to fraction form
    166,355.70/249,533.55 = 91,446.90/x
  3. Step 3: Cross multiply
    166,355.70x = 249,533.55 × 91,446.90
  4. Step 4: Simplify right side
    166,355.70x = 22,819,069,593.50
  5. Step 5: Solve for x
    x = 22,819,069,593.50/166,355.70
  6. Step 6: Final answer
    x = 137,170.35

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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.