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Finding the Fourth Proportional to 127,297.56, 175,665.72 and 70,712.52

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Solution

The fourth proportional to 127,297.56, 175,665.72 and 70,712.52 is: 97,580.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,297.56 : 175,665.72 = 70,712.52 : x
  2. Step 2: Convert to fraction form
    127,297.56/175,665.72 = 70,712.52/x
  3. Step 3: Cross multiply
    127,297.56x = 175,665.72 × 70,712.52
  4. Step 4: Simplify right side
    127,297.56x = 12,421,765,738.81
  5. Step 5: Solve for x
    x = 12,421,765,738.81/127,297.56
  6. Step 6: Final answer
    x = 97,580.55

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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.