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Finding the Fourth Proportional to 127,951.46, 191,885.60 and 42,539.32

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Solution

The fourth proportional to 127,951.46, 191,885.60 and 42,539.32 is: 63,795.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,951.46 : 191,885.60 = 42,539.32 : x
  2. Step 2: Convert to fraction form
    127,951.46/191,885.60 = 42,539.32/x
  3. Step 3: Cross multiply
    127,951.46x = 191,885.60 × 42,539.32
  4. Step 4: Simplify right side
    127,951.46x = 8,162,682,941.79
  5. Step 5: Solve for x
    x = 8,162,682,941.79/127,951.46
  6. Step 6: Final answer
    x = 63,795.16

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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.