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Finding the Fourth Proportional to 113,326.80, 169,601.40 and 103,995.60

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Solution

The fourth proportional to 113,326.80, 169,601.40 and 103,995.60 is: 155,636.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,326.80 : 169,601.40 = 103,995.60 : x
  2. Step 2: Convert to fraction form
    113,326.80/169,601.40 = 103,995.60/x
  3. Step 3: Cross multiply
    113,326.80x = 169,601.40 × 103,995.60
  4. Step 4: Simplify right side
    113,326.80x = 17,637,799,353.84
  5. Step 5: Solve for x
    x = 17,637,799,353.84/113,326.80
  6. Step 6: Final answer
    x = 155,636.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.