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Finding the Fourth Proportional to 152,657.66, 210,692.80 and 84,696.54

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Solution

The fourth proportional to 152,657.66, 210,692.80 and 84,696.54 is: 116,895.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,657.66 : 210,692.80 = 84,696.54 : x
  2. Step 2: Convert to fraction form
    152,657.66/210,692.80 = 84,696.54/x
  3. Step 3: Cross multiply
    152,657.66x = 210,692.80 × 84,696.54
  4. Step 4: Simplify right side
    152,657.66x = 17,844,950,478.68
  5. Step 5: Solve for x
    x = 17,844,950,478.68/152,657.66
  6. Step 6: Final answer
    x = 116,895.22

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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.