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Finding the Fourth Proportional to 152,675.79, 210,692.39 and 84,703.07

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Solution

The fourth proportional to 152,675.79, 210,692.39 and 84,703.07 is: 116,890.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,675.79 : 210,692.39 = 84,703.07 : x
  2. Step 2: Convert to fraction form
    152,675.79/210,692.39 = 84,703.07/x
  3. Step 3: Cross multiply
    152,675.79x = 210,692.39 × 84,703.07
  4. Step 4: Simplify right side
    152,675.79x = 17,846,291,653.16
  5. Step 5: Solve for x
    x = 17,846,291,653.16/152,675.79
  6. Step 6: Final answer
    x = 116,890.12

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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.