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Finding the Fourth Proportional to 76,614.19, 105,731.01 and 63,846.01

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Solution

The fourth proportional to 76,614.19, 105,731.01 and 63,846.01 is: 88,110.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,614.19 : 105,731.01 = 63,846.01 : x
  2. Step 2: Convert to fraction form
    76,614.19/105,731.01 = 63,846.01/x
  3. Step 3: Cross multiply
    76,614.19x = 105,731.01 × 63,846.01
  4. Step 4: Simplify right side
    76,614.19x = 6,750,502,273.89
  5. Step 5: Solve for x
    x = 6,750,502,273.89/76,614.19
  6. Step 6: Final answer
    x = 88,110.35

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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.