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Finding the Fourth Proportional to 114,379.48, 157,839.34 and 63,390.88

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Solution

The fourth proportional to 114,379.48, 157,839.34 and 63,390.88 is: 87,477.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,379.48 : 157,839.34 = 63,390.88 : x
  2. Step 2: Convert to fraction form
    114,379.48/157,839.34 = 63,390.88/x
  3. Step 3: Cross multiply
    114,379.48x = 157,839.34 × 63,390.88
  4. Step 4: Simplify right side
    114,379.48x = 10,005,574,661.22
  5. Step 5: Solve for x
    x = 10,005,574,661.22/114,379.48
  6. Step 6: Final answer
    x = 87,477.01

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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.