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Finding the Fourth Proportional to 114,339.65, 171,417.88 and 54,338.01

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Solution

The fourth proportional to 114,339.65, 171,417.88 and 54,338.01 is: 81,463.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,339.65 : 171,417.88 = 54,338.01 : x
  2. Step 2: Convert to fraction form
    114,339.65/171,417.88 = 54,338.01/x
  3. Step 3: Cross multiply
    114,339.65x = 171,417.88 × 54,338.01
  4. Step 4: Simplify right side
    114,339.65x = 9,314,506,477.62
  5. Step 5: Solve for x
    x = 9,314,506,477.62/114,339.65
  6. Step 6: Final answer
    x = 81,463.49

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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.