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Finding the Fourth Proportional to 150,053.44, 207,050.74 and 86,378.93

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Solution

The fourth proportional to 150,053.44, 207,050.74 and 86,378.93 is: 119,189.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,053.44 : 207,050.74 = 86,378.93 : x
  2. Step 2: Convert to fraction form
    150,053.44/207,050.74 = 86,378.93/x
  3. Step 3: Cross multiply
    150,053.44x = 207,050.74 × 86,378.93
  4. Step 4: Simplify right side
    150,053.44x = 17,884,821,376.91
  5. Step 5: Solve for x
    x = 17,884,821,376.91/150,053.44
  6. Step 6: Final answer
    x = 119,189.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.