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Finding the Fourth Proportional to 525,838.52, 788,863.90 and 166,065.60

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Solution

The fourth proportional to 525,838.52, 788,863.90 and 166,065.60 is: 249,131.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,838.52 : 788,863.90 = 166,065.60 : x
  2. Step 2: Convert to fraction form
    525,838.52/788,863.90 = 166,065.60/x
  3. Step 3: Cross multiply
    525,838.52x = 788,863.90 × 166,065.60
  4. Step 4: Simplify right side
    525,838.52x = 131,003,156,871.84
  5. Step 5: Solve for x
    x = 131,003,156,871.84/525,838.52
  6. Step 6: Final answer
    x = 249,131.91

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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.