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Finding the Fourth Proportional to 525,937.20, 788,711.40 and 170,962.80

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Solution

The fourth proportional to 525,937.20, 788,711.40 and 170,962.80 is: 256,381.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,937.20 : 788,711.40 = 170,962.80 : x
  2. Step 2: Convert to fraction form
    525,937.20/788,711.40 = 170,962.80/x
  3. Step 3: Cross multiply
    525,937.20x = 788,711.40 × 170,962.80
  4. Step 4: Simplify right side
    525,937.20x = 134,840,309,335.92
  5. Step 5: Solve for x
    x = 134,840,309,335.92/525,937.20
  6. Step 6: Final answer
    x = 256,381.01

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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.