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Finding the Fourth Proportional to 114,609.20, 171,913.80 and 102,556.40

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Solution

The fourth proportional to 114,609.20, 171,913.80 and 102,556.40 is: 153,834.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,609.20 : 171,913.80 = 102,556.40 : x
  2. Step 2: Convert to fraction form
    114,609.20/171,913.80 = 102,556.40/x
  3. Step 3: Cross multiply
    114,609.20x = 171,913.80 × 102,556.40
  4. Step 4: Simplify right side
    114,609.20x = 17,630,860,438.32
  5. Step 5: Solve for x
    x = 17,630,860,438.32/114,609.20
  6. Step 6: Final answer
    x = 153,834.60

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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.