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Finding the Fourth Proportional to 359,417.34, 538,968.54 and 134,620.02

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Solution

The fourth proportional to 359,417.34, 538,968.54 and 134,620.02 is: 201,871.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,417.34 : 538,968.54 = 134,620.02 : x
  2. Step 2: Convert to fraction form
    359,417.34/538,968.54 = 134,620.02/x
  3. Step 3: Cross multiply
    359,417.34x = 538,968.54 × 134,620.02
  4. Step 4: Simplify right side
    359,417.34x = 72,555,955,634.17
  5. Step 5: Solve for x
    x = 72,555,955,634.17/359,417.34
  6. Step 6: Final answer
    x = 201,871.05

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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.