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Finding the Fourth Proportional to 114,807.90, 171,904.65 and 73,028.70

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Solution

The fourth proportional to 114,807.90, 171,904.65 and 73,028.70 is: 109,347.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,807.90 : 171,904.65 = 73,028.70 : x
  2. Step 2: Convert to fraction form
    114,807.90/171,904.65 = 73,028.70/x
  3. Step 3: Cross multiply
    114,807.90x = 171,904.65 × 73,028.70
  4. Step 4: Simplify right side
    114,807.90x = 12,553,973,113.46
  5. Step 5: Solve for x
    x = 12,553,973,113.46/114,807.90
  6. Step 6: Final answer
    x = 109,347.64

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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.