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Finding the Fourth Proportional to 127,752.98, 176,299.08 and 70,393.10

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Solution

The fourth proportional to 127,752.98, 176,299.08 and 70,393.10 is: 97,142.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,752.98 : 176,299.08 = 70,393.10 : x
  2. Step 2: Convert to fraction form
    127,752.98/176,299.08 = 70,393.10/x
  3. Step 3: Cross multiply
    127,752.98x = 176,299.08 × 70,393.10
  4. Step 4: Simplify right side
    127,752.98x = 12,410,238,768.35
  5. Step 5: Solve for x
    x = 12,410,238,768.35/127,752.98
  6. Step 6: Final answer
    x = 97,142.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.