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Finding the Fourth Proportional to 255,063.20, 382,740.60 and 97,404.80

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Solution

The fourth proportional to 255,063.20, 382,740.60 and 97,404.80 is: 146,162.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,063.20 : 382,740.60 = 97,404.80 : x
  2. Step 2: Convert to fraction form
    255,063.20/382,740.60 = 97,404.80/x
  3. Step 3: Cross multiply
    255,063.20x = 382,740.60 × 97,404.80
  4. Step 4: Simplify right side
    255,063.20x = 37,280,771,594.88
  5. Step 5: Solve for x
    x = 37,280,771,594.88/255,063.20
  6. Step 6: Final answer
    x = 146,162.88

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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.