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Finding the Fourth Proportional to 166,468.80, 249,703.20 and 164,913.60

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Solution

The fourth proportional to 166,468.80, 249,703.20 and 164,913.60 is: 247,370.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,468.80 : 249,703.20 = 164,913.60 : x
  2. Step 2: Convert to fraction form
    166,468.80/249,703.20 = 164,913.60/x
  3. Step 3: Cross multiply
    166,468.80x = 249,703.20 × 164,913.60
  4. Step 4: Simplify right side
    166,468.80x = 41,179,453,643.52
  5. Step 5: Solve for x
    x = 41,179,453,643.52/166,468.80
  6. Step 6: Final answer
    x = 247,370.40

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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.