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Finding the Fourth Proportional to 525,770.64, 788,655.96 and 126,411.41

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Solution

The fourth proportional to 525,770.64, 788,655.96 and 126,411.41 is: 189,617.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,770.64 : 788,655.96 = 126,411.41 : x
  2. Step 2: Convert to fraction form
    525,770.64/788,655.96 = 126,411.41/x
  3. Step 3: Cross multiply
    525,770.64x = 788,655.96 × 126,411.41
  4. Step 4: Simplify right side
    525,770.64x = 99,695,113,880.14
  5. Step 5: Solve for x
    x = 99,695,113,880.14/525,770.64
  6. Step 6: Final answer
    x = 189,617.12

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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.