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Finding the Fourth Proportional to 375,907.20, 563,882.40 and 109,708.80

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Solution

The fourth proportional to 375,907.20, 563,882.40 and 109,708.80 is: 164,569.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,907.20 : 563,882.40 = 109,708.80 : x
  2. Step 2: Convert to fraction form
    375,907.20/563,882.40 = 109,708.80/x
  3. Step 3: Cross multiply
    375,907.20x = 563,882.40 × 109,708.80
  4. Step 4: Simplify right side
    375,907.20x = 61,862,861,445.12
  5. Step 5: Solve for x
    x = 61,862,861,445.12/375,907.20
  6. Step 6: Final answer
    x = 164,569.50

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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.