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Finding the Fourth Proportional to 81,951.84, 113,104.80 and 46,156.32

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Solution

The fourth proportional to 81,951.84, 113,104.80 and 46,156.32 is: 63,702.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,951.84 : 113,104.80 = 46,156.32 : x
  2. Step 2: Convert to fraction form
    81,951.84/113,104.80 = 46,156.32/x
  3. Step 3: Cross multiply
    81,951.84x = 113,104.80 × 46,156.32
  4. Step 4: Simplify right side
    81,951.84x = 5,220,501,342.34
  5. Step 5: Solve for x
    x = 5,220,501,342.34/81,951.84
  6. Step 6: Final answer
    x = 63,702.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.