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Finding the Fourth Proportional to 99,055.94, 148,444.11 and 76,765.01

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Solution

The fourth proportional to 99,055.94, 148,444.11 and 76,765.01 is: 115,039.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,055.94 : 148,444.11 = 76,765.01 : x
  2. Step 2: Convert to fraction form
    99,055.94/148,444.11 = 76,765.01/x
  3. Step 3: Cross multiply
    99,055.94x = 148,444.11 × 76,765.01
  4. Step 4: Simplify right side
    99,055.94x = 11,395,312,846.37
  5. Step 5: Solve for x
    x = 11,395,312,846.37/99,055.94
  6. Step 6: Final answer
    x = 115,039.17

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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.