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Finding the Fourth Proportional to 525,390.62, 787,804.05 and 165,494.25

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Solution

The fourth proportional to 525,390.62, 787,804.05 and 165,494.25 is: 248,152.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,390.62 : 787,804.05 = 165,494.25 : x
  2. Step 2: Convert to fraction form
    525,390.62/787,804.05 = 165,494.25/x
  3. Step 3: Cross multiply
    525,390.62x = 787,804.05 × 165,494.25
  4. Step 4: Simplify right side
    525,390.62x = 130,377,041,543.75
  5. Step 5: Solve for x
    x = 130,377,041,543.75/525,390.62
  6. Step 6: Final answer
    x = 248,152.59

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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.