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Finding the Fourth Proportional to 359,038.05, 538,570.75 and 134,374.83

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Solution

The fourth proportional to 359,038.05, 538,570.75 and 134,374.83 is: 201,567.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,038.05 : 538,570.75 = 134,374.83 : x
  2. Step 2: Convert to fraction form
    359,038.05/538,570.75 = 134,374.83/x
  3. Step 3: Cross multiply
    359,038.05x = 538,570.75 × 134,374.83
  4. Step 4: Simplify right side
    359,038.05x = 72,370,352,974.22
  5. Step 5: Solve for x
    x = 72,370,352,974.22/359,038.05
  6. Step 6: Final answer
    x = 201,567.36

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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.