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Finding the Fourth Proportional to 115,440.84, 172,964.16 and 62,756.28

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Solution

The fourth proportional to 115,440.84, 172,964.16 and 62,756.28 is: 94,027.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,440.84 : 172,964.16 = 62,756.28 : x
  2. Step 2: Convert to fraction form
    115,440.84/172,964.16 = 62,756.28/x
  3. Step 3: Cross multiply
    115,440.84x = 172,964.16 × 62,756.28
  4. Step 4: Simplify right side
    115,440.84x = 10,854,587,254.92
  5. Step 5: Solve for x
    x = 10,854,587,254.92/115,440.84
  6. Step 6: Final answer
    x = 94,027.27

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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.