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Finding the Fourth Proportional to 98,173.80, 135,477.90 and 57,889.26

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Solution

The fourth proportional to 98,173.80, 135,477.90 and 57,889.26 is: 79,886.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,173.80 : 135,477.90 = 57,889.26 : x
  2. Step 2: Convert to fraction form
    98,173.80/135,477.90 = 57,889.26/x
  3. Step 3: Cross multiply
    98,173.80x = 135,477.90 × 57,889.26
  4. Step 4: Simplify right side
    98,173.80x = 7,842,715,377.35
  5. Step 5: Solve for x
    x = 7,842,715,377.35/98,173.80
  6. Step 6: Final answer
    x = 79,886.03

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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.