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Finding the Fourth Proportional to 115,496.60, 159,396.54 and 70,164.68

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Solution

The fourth proportional to 115,496.60, 159,396.54 and 70,164.68 is: 96,834.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,496.60 : 159,396.54 = 70,164.68 : x
  2. Step 2: Convert to fraction form
    115,496.60/159,396.54 = 70,164.68/x
  3. Step 3: Cross multiply
    115,496.60x = 159,396.54 × 70,164.68
  4. Step 4: Simplify right side
    115,496.60x = 11,184,007,222.21
  5. Step 5: Solve for x
    x = 11,184,007,222.21/115,496.60
  6. Step 6: Final answer
    x = 96,834.08

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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.