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Finding the Fourth Proportional to 223,042.40, 334,466.40 and 89,878.40

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Solution

The fourth proportional to 223,042.40, 334,466.40 and 89,878.40 is: 134,778.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,042.40 : 334,466.40 = 89,878.40 : x
  2. Step 2: Convert to fraction form
    223,042.40/334,466.40 = 89,878.40/x
  3. Step 3: Cross multiply
    223,042.40x = 334,466.40 × 89,878.40
  4. Step 4: Simplify right side
    223,042.40x = 30,061,304,885.76
  5. Step 5: Solve for x
    x = 30,061,304,885.76/223,042.40
  6. Step 6: Final answer
    x = 134,778.43

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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.