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Finding the Fourth Proportional to 113,164.41, 156,101.91 and 70,649.13

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Solution

The fourth proportional to 113,164.41, 156,101.91 and 70,649.13 is: 97,455.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,164.41 : 156,101.91 = 70,649.13 : x
  2. Step 2: Convert to fraction form
    113,164.41/156,101.91 = 70,649.13/x
  3. Step 3: Cross multiply
    113,164.41x = 156,101.91 × 70,649.13
  4. Step 4: Simplify right side
    113,164.41x = 11,028,464,132.84
  5. Step 5: Solve for x
    x = 11,028,464,132.84/113,164.41
  6. Step 6: Final answer
    x = 97,455.23

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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.