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Finding the Fourth Proportional to 359,310.04, 538,965.06 and 109,959.64

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Solution

The fourth proportional to 359,310.04, 538,965.06 and 109,959.64 is: 164,939.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,310.04 : 538,965.06 = 109,959.64 : x
  2. Step 2: Convert to fraction form
    359,310.04/538,965.06 = 109,959.64/x
  3. Step 3: Cross multiply
    359,310.04x = 538,965.06 × 109,959.64
  4. Step 4: Simplify right side
    359,310.04x = 59,264,403,970.18
  5. Step 5: Solve for x
    x = 59,264,403,970.18/359,310.04
  6. Step 6: Final answer
    x = 164,939.46

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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.