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Finding the Fourth Proportional to 151,813.92, 209,454.48 and 84,732.96

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Solution

The fourth proportional to 151,813.92, 209,454.48 and 84,732.96 is: 116,904.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,813.92 : 209,454.48 = 84,732.96 : x
  2. Step 2: Convert to fraction form
    151,813.92/209,454.48 = 84,732.96/x
  3. Step 3: Cross multiply
    151,813.92x = 209,454.48 × 84,732.96
  4. Step 4: Simplify right side
    151,813.92x = 17,747,698,075.66
  5. Step 5: Solve for x
    x = 17,747,698,075.66/151,813.92
  6. Step 6: Final answer
    x = 116,904.29

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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.