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Finding the Fourth Proportional to 359,054.95, 538,682.07 and 156,668.77

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Solution

The fourth proportional to 359,054.95, 538,682.07 and 156,668.77 is: 235,046.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,054.95 : 538,682.07 = 156,668.77 : x
  2. Step 2: Convert to fraction form
    359,054.95/538,682.07 = 156,668.77/x
  3. Step 3: Cross multiply
    359,054.95x = 538,682.07 × 156,668.77
  4. Step 4: Simplify right side
    359,054.95x = 84,394,657,327.95
  5. Step 5: Solve for x
    x = 84,394,657,327.95/359,054.95
  6. Step 6: Final answer
    x = 235,046.63

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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.