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Finding the Fourth Proportional to 199,421.16, 299,133.60 and 59,179.80

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Solution

The fourth proportional to 199,421.16, 299,133.60 and 59,179.80 is: 88,770.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,421.16 : 299,133.60 = 59,179.80 : x
  2. Step 2: Convert to fraction form
    199,421.16/299,133.60 = 59,179.80/x
  3. Step 3: Cross multiply
    199,421.16x = 299,133.60 × 59,179.80
  4. Step 4: Simplify right side
    199,421.16x = 17,702,666,621.28
  5. Step 5: Solve for x
    x = 17,702,666,621.28/199,421.16
  6. Step 6: Final answer
    x = 88,770.25

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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.