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Finding the Fourth Proportional to 324,710.20, 487,142.10 and 103,094.20

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Solution

The fourth proportional to 324,710.20, 487,142.10 and 103,094.20 is: 154,665.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,710.20 : 487,142.10 = 103,094.20 : x
  2. Step 2: Convert to fraction form
    324,710.20/487,142.10 = 103,094.20/x
  3. Step 3: Cross multiply
    324,710.20x = 487,142.10 × 103,094.20
  4. Step 4: Simplify right side
    324,710.20x = 50,221,525,085.82
  5. Step 5: Solve for x
    x = 50,221,525,085.82/324,710.20
  6. Step 6: Final answer
    x = 154,665.68

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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.