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Finding the Fourth Proportional to 125,464.68, 188,120.66 and 53,332.60

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Solution

The fourth proportional to 125,464.68, 188,120.66 and 53,332.60 is: 79,966.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,464.68 : 188,120.66 = 53,332.60 : x
  2. Step 2: Convert to fraction form
    125,464.68/188,120.66 = 53,332.60/x
  3. Step 3: Cross multiply
    125,464.68x = 188,120.66 × 53,332.60
  4. Step 4: Simplify right side
    125,464.68x = 10,032,963,911.52
  5. Step 5: Solve for x
    x = 10,032,963,911.52/125,464.68
  6. Step 6: Final answer
    x = 79,966.44

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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.