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Finding the Fourth Proportional to 350,454.71, 525,681.99 and 84,215.22

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Solution

The fourth proportional to 350,454.71, 525,681.99 and 84,215.22 is: 126,322.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,454.71 : 525,681.99 = 84,215.22 : x
  2. Step 2: Convert to fraction form
    350,454.71/525,681.99 = 84,215.22/x
  3. Step 3: Cross multiply
    350,454.71x = 525,681.99 × 84,215.22
  4. Step 4: Simplify right side
    350,454.71x = 44,270,424,437.89
  5. Step 5: Solve for x
    x = 44,270,424,437.89/350,454.71
  6. Step 6: Final answer
    x = 126,322.81

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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.