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Finding the Fourth Proportional to 207,898.80, 311,848.20 and 175,239.60

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Solution

The fourth proportional to 207,898.80, 311,848.20 and 175,239.60 is: 262,859.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,898.80 : 311,848.20 = 175,239.60 : x
  2. Step 2: Convert to fraction form
    207,898.80/311,848.20 = 175,239.60/x
  3. Step 3: Cross multiply
    207,898.80x = 311,848.20 × 175,239.60
  4. Step 4: Simplify right side
    207,898.80x = 54,648,153,828.72
  5. Step 5: Solve for x
    x = 54,648,153,828.72/207,898.80
  6. Step 6: Final answer
    x = 262,859.40

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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.