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Finding the Fourth Proportional to 291,708.30, 437,562.45 and 70,092.30

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Solution

The fourth proportional to 291,708.30, 437,562.45 and 70,092.30 is: 105,138.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,708.30 : 437,562.45 = 70,092.30 : x
  2. Step 2: Convert to fraction form
    291,708.30/437,562.45 = 70,092.30/x
  3. Step 3: Cross multiply
    291,708.30x = 437,562.45 × 70,092.30
  4. Step 4: Simplify right side
    291,708.30x = 30,669,758,514.14
  5. Step 5: Solve for x
    x = 30,669,758,514.14/291,708.30
  6. Step 6: Final answer
    x = 105,138.45

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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.