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Finding the Fourth Proportional to 359,039.60, 538,557.76 and 92,777.48

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Solution

The fourth proportional to 359,039.60, 538,557.76 and 92,777.48 is: 139,165.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,039.60 : 538,557.76 = 92,777.48 : x
  2. Step 2: Convert to fraction form
    359,039.60/538,557.76 = 92,777.48/x
  3. Step 3: Cross multiply
    359,039.60x = 538,557.76 × 92,777.48
  4. Step 4: Simplify right side
    359,039.60x = 49,966,031,807.24
  5. Step 5: Solve for x
    x = 49,966,031,807.24/359,039.60
  6. Step 6: Final answer
    x = 139,165.80

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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.