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Finding the Fourth Proportional to 525,771.77, 788,657.66 and 126,412.56

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Solution

The fourth proportional to 525,771.77, 788,657.66 and 126,412.56 is: 189,618.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,771.77 : 788,657.66 = 126,412.56 : x
  2. Step 2: Convert to fraction form
    525,771.77/788,657.66 = 126,412.56/x
  3. Step 3: Cross multiply
    525,771.77x = 788,657.66 × 126,412.56
  4. Step 4: Simplify right side
    525,771.77x = 99,696,232,099.16
  5. Step 5: Solve for x
    x = 99,696,232,099.16/525,771.77
  6. Step 6: Final answer
    x = 189,618.84

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Similar ratio
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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.