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Finding the Fourth Proportional to 123,803.36, 170,859.21 and 70,097.84

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Solution

The fourth proportional to 123,803.36, 170,859.21 and 70,097.84 is: 96,741.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,803.36 : 170,859.21 = 70,097.84 : x
  2. Step 2: Convert to fraction form
    123,803.36/170,859.21 = 70,097.84/x
  3. Step 3: Cross multiply
    123,803.36x = 170,859.21 × 70,097.84
  4. Step 4: Simplify right side
    123,803.36x = 11,976,861,565.11
  5. Step 5: Solve for x
    x = 11,976,861,565.11/123,803.36
  6. Step 6: Final answer
    x = 96,741.01

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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.