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Finding the Fourth Proportional to 335,841.80, 503,877.90 and 148,987.40

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Solution

The fourth proportional to 335,841.80, 503,877.90 and 148,987.40 is: 223,532.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,841.80 : 503,877.90 = 148,987.40 : x
  2. Step 2: Convert to fraction form
    335,841.80/503,877.90 = 148,987.40/x
  3. Step 3: Cross multiply
    335,841.80x = 503,877.90 × 148,987.40
  4. Step 4: Simplify right side
    335,841.80x = 75,071,458,238.46
  5. Step 5: Solve for x
    x = 75,071,458,238.46/335,841.80
  6. Step 6: Final answer
    x = 223,532.21

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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.