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Finding the Fourth Proportional to 210,541.41, 315,817.88 and 70,295.01

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Solution

The fourth proportional to 210,541.41, 315,817.88 and 70,295.01 is: 105,444.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,541.41 : 315,817.88 = 70,295.01 : x
  2. Step 2: Convert to fraction form
    210,541.41/315,817.88 = 70,295.01/x
  3. Step 3: Cross multiply
    210,541.41x = 315,817.88 × 70,295.01
  4. Step 4: Simplify right side
    210,541.41x = 22,200,420,681.30
  5. Step 5: Solve for x
    x = 22,200,420,681.30/210,541.41
  6. Step 6: Final answer
    x = 105,444.44

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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.