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Finding the Fourth Proportional to 76,607.88, 114,888.45 and 61,579.35

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Solution

The fourth proportional to 76,607.88, 114,888.45 and 61,579.35 is: 92,350.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,607.88 : 114,888.45 = 61,579.35 : x
  2. Step 2: Convert to fraction form
    76,607.88/114,888.45 = 61,579.35/x
  3. Step 3: Cross multiply
    76,607.88x = 114,888.45 × 61,579.35
  4. Step 4: Simplify right side
    76,607.88x = 7,074,756,073.51
  5. Step 5: Solve for x
    x = 7,074,756,073.51/76,607.88
  6. Step 6: Final answer
    x = 92,350.24

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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.