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Finding the Fourth Proportional to 114,115.25, 157,476.20 and 63,130.82

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Solution

The fourth proportional to 114,115.25, 157,476.20 and 63,130.82 is: 87,118.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,115.25 : 157,476.20 = 63,130.82 : x
  2. Step 2: Convert to fraction form
    114,115.25/157,476.20 = 63,130.82/x
  3. Step 3: Cross multiply
    114,115.25x = 157,476.20 × 63,130.82
  4. Step 4: Simplify right side
    114,115.25x = 9,941,600,533.45
  5. Step 5: Solve for x
    x = 9,941,600,533.45/114,115.25
  6. Step 6: Final answer
    x = 87,118.95

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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.