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Finding the Fourth Proportional to 250,538.50, 375,866.12 and 84,326.50

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Solution

The fourth proportional to 250,538.50, 375,866.12 and 84,326.50 is: 126,509.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,538.50 : 375,866.12 = 84,326.50 : x
  2. Step 2: Convert to fraction form
    250,538.50/375,866.12 = 84,326.50/x
  3. Step 3: Cross multiply
    250,538.50x = 375,866.12 × 84,326.50
  4. Step 4: Simplify right side
    250,538.50x = 31,695,474,368.18
  5. Step 5: Solve for x
    x = 31,695,474,368.18/250,538.50
  6. Step 6: Final answer
    x = 126,509.40

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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.