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Finding the Fourth Proportional to 525,563.21, 788,213.59 and 170,678.81

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Solution

The fourth proportional to 525,563.21, 788,213.59 and 170,678.81 is: 255,975.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,563.21 : 788,213.59 = 170,678.81 : x
  2. Step 2: Convert to fraction form
    525,563.21/788,213.59 = 170,678.81/x
  3. Step 3: Cross multiply
    525,563.21x = 788,213.59 × 170,678.81
  4. Step 4: Simplify right side
    525,563.21x = 134,531,357,567.03
  5. Step 5: Solve for x
    x = 134,531,357,567.03/525,563.21
  6. Step 6: Final answer
    x = 255,975.60

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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.