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Finding the Fourth Proportional to 525,886.87, 788,830.31 and 126,527.65

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Solution

The fourth proportional to 525,886.87, 788,830.31 and 126,527.65 is: 189,791.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,886.87 : 788,830.31 = 126,527.65 : x
  2. Step 2: Convert to fraction form
    525,886.87/788,830.31 = 126,527.65/x
  3. Step 3: Cross multiply
    525,886.87x = 788,830.31 × 126,527.65
  4. Step 4: Simplify right side
    525,886.87x = 99,808,842,768.36
  5. Step 5: Solve for x
    x = 99,808,842,768.36/525,886.87
  6. Step 6: Final answer
    x = 189,791.47

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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.