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Finding the Fourth Proportional to 152,458.71, 210,400.83 and 92,028.57

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Solution

The fourth proportional to 152,458.71, 210,400.83 and 92,028.57 is: 127,004.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,458.71 : 210,400.83 = 92,028.57 : x
  2. Step 2: Convert to fraction form
    152,458.71/210,400.83 = 92,028.57/x
  3. Step 3: Cross multiply
    152,458.71x = 210,400.83 × 92,028.57
  4. Step 4: Simplify right side
    152,458.71x = 19,362,887,511.71
  5. Step 5: Solve for x
    x = 19,362,887,511.71/152,458.71
  6. Step 6: Final answer
    x = 127,004.14

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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.