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Finding the Fourth Proportional to 101,053.60, 151,623.60 and 63,642.40

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Solution

The fourth proportional to 101,053.60, 151,623.60 and 63,642.40 is: 95,490.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,053.60 : 151,623.60 = 63,642.40 : x
  2. Step 2: Convert to fraction form
    101,053.60/151,623.60 = 63,642.40/x
  3. Step 3: Cross multiply
    101,053.60x = 151,623.60 × 63,642.40
  4. Step 4: Simplify right side
    101,053.60x = 9,649,689,800.64
  5. Step 5: Solve for x
    x = 9,649,689,800.64/101,053.60
  6. Step 6: Final answer
    x = 95,490.81

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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.