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Finding the Fourth Proportional to 104,489.64, 144,239.84 and 70,544.10

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Solution

The fourth proportional to 104,489.64, 144,239.84 and 70,544.10 is: 97,380.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,489.64 : 144,239.84 = 70,544.10 : x
  2. Step 2: Convert to fraction form
    104,489.64/144,239.84 = 70,544.10/x
  3. Step 3: Cross multiply
    104,489.64x = 144,239.84 × 70,544.10
  4. Step 4: Simplify right side
    104,489.64x = 10,175,270,326.02
  5. Step 5: Solve for x
    x = 10,175,270,326.02/104,489.64
  6. Step 6: Final answer
    x = 97,380.66

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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.