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Finding the Fourth Proportional to 117,658.49, 162,368.64 and 63,943.52

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Solution

The fourth proportional to 117,658.49, 162,368.64 and 63,943.52 is: 88,242.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,658.49 : 162,368.64 = 63,943.52 : x
  2. Step 2: Convert to fraction form
    117,658.49/162,368.64 = 63,943.52/x
  3. Step 3: Cross multiply
    117,658.49x = 162,368.64 × 63,943.52
  4. Step 4: Simplify right side
    117,658.49x = 10,382,421,567.37
  5. Step 5: Solve for x
    x = 10,382,421,567.37/117,658.49
  6. Step 6: Final answer
    x = 88,242.01

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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.