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Finding the Fourth Proportional to 525,683.00, 788,524.40 and 126,323.76

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Solution

The fourth proportional to 525,683.00, 788,524.40 and 126,323.76 is: 189,485.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,683.00 : 788,524.40 = 126,323.76 : x
  2. Step 2: Convert to fraction form
    525,683.00/788,524.40 = 126,323.76/x
  3. Step 3: Cross multiply
    525,683.00x = 788,524.40 × 126,323.76
  4. Step 4: Simplify right side
    525,683.00x = 99,609,366,428.13
  5. Step 5: Solve for x
    x = 99,609,366,428.13/525,683.00
  6. Step 6: Final answer
    x = 189,485.62

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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.