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Finding the Fourth Proportional to 113,142.58, 169,713.88 and 28,902.93

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Solution

The fourth proportional to 113,142.58, 169,713.88 and 28,902.93 is: 43,354.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,142.58 : 169,713.88 = 28,902.93 : x
  2. Step 2: Convert to fraction form
    113,142.58/169,713.88 = 28,902.93/x
  3. Step 3: Cross multiply
    113,142.58x = 169,713.88 × 28,902.93
  4. Step 4: Simplify right side
    113,142.58x = 4,905,228,738.63
  5. Step 5: Solve for x
    x = 4,905,228,738.63/113,142.58
  6. Step 6: Final answer
    x = 43,354.40

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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.