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Finding the Fourth Proportional to 228,784.80, 343,210.40 and 71,026.08

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Solution

The fourth proportional to 228,784.80, 343,210.40 and 71,026.08 is: 106,549.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,784.80 : 343,210.40 = 71,026.08 : x
  2. Step 2: Convert to fraction form
    228,784.80/343,210.40 = 71,026.08/x
  3. Step 3: Cross multiply
    228,784.80x = 343,210.40 × 71,026.08
  4. Step 4: Simplify right side
    228,784.80x = 24,376,889,327.23
  5. Step 5: Solve for x
    x = 24,376,889,327.23/228,784.80
  6. Step 6: Final answer
    x = 106,549.43

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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.