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Finding the Fourth Proportional to 525,814.68, 788,855.08 and 146,735.36

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Solution

The fourth proportional to 525,814.68, 788,855.08 and 146,735.36 is: 220,140.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,814.68 : 788,855.08 = 146,735.36 : x
  2. Step 2: Convert to fraction form
    525,814.68/788,855.08 = 146,735.36/x
  3. Step 3: Cross multiply
    525,814.68x = 788,855.08 × 146,735.36
  4. Step 4: Simplify right side
    525,814.68x = 115,752,933,770.49
  5. Step 5: Solve for x
    x = 115,752,933,770.49/525,814.68
  6. Step 6: Final answer
    x = 220,140.17

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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.