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Finding the Fourth Proportional to 104,253, 143,987.94 and 70,660.68

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Solution

The fourth proportional to 104,253, 143,987.94 and 70,660.68 is: 97,592.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,253 : 143,987.94 = 70,660.68 : x
  2. Step 2: Convert to fraction form
    104,253/143,987.94 = 70,660.68/x
  3. Step 3: Cross multiply
    104,253x = 143,987.94 × 70,660.68
  4. Step 4: Simplify right side
    104,253x = 10,174,285,752.20
  5. Step 5: Solve for x
    x = 10,174,285,752.20/104,253
  6. Step 6: Final answer
    x = 97,592.26

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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.