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Finding the Fourth Proportional to 423,977.94, 635,970.54 and 124,463.42

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Solution

The fourth proportional to 423,977.94, 635,970.54 and 124,463.42 is: 186,696.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,977.94 : 635,970.54 = 124,463.42 : x
  2. Step 2: Convert to fraction form
    423,977.94/635,970.54 = 124,463.42/x
  3. Step 3: Cross multiply
    423,977.94x = 635,970.54 × 124,463.42
  4. Step 4: Simplify right side
    423,977.94x = 79,155,068,427.65
  5. Step 5: Solve for x
    x = 79,155,068,427.65/423,977.94
  6. Step 6: Final answer
    x = 186,696.20

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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.