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Finding the Fourth Proportional to 125,390.56, 188,159.28 and 46,559.20

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Solution

The fourth proportional to 125,390.56, 188,159.28 and 46,559.20 is: 69,866.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,390.56 : 188,159.28 = 46,559.20 : x
  2. Step 2: Convert to fraction form
    125,390.56/188,159.28 = 46,559.20/x
  3. Step 3: Cross multiply
    125,390.56x = 188,159.28 × 46,559.20
  4. Step 4: Simplify right side
    125,390.56x = 8,760,545,549.38
  5. Step 5: Solve for x
    x = 8,760,545,549.38/125,390.56
  6. Step 6: Final answer
    x = 69,866.07

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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.