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Finding the Fourth Proportional to 372,907.71, 514,574.04 and 209,538.27

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Solution

The fourth proportional to 372,907.71, 514,574.04 and 209,538.27 is: 289,141.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,907.71 : 514,574.04 = 209,538.27 : x
  2. Step 2: Convert to fraction form
    372,907.71/514,574.04 = 209,538.27/x
  3. Step 3: Cross multiply
    372,907.71x = 514,574.04 × 209,538.27
  4. Step 4: Simplify right side
    372,907.71x = 107,822,954,128.51
  5. Step 5: Solve for x
    x = 107,822,954,128.51/372,907.71
  6. Step 6: Final answer
    x = 289,141.12

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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.