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Finding the Fourth Proportional to 356,387.55, 534,661.10 and 119,723.77

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Solution

The fourth proportional to 356,387.55, 534,661.10 and 119,723.77 is: 179,612.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,387.55 : 534,661.10 = 119,723.77 : x
  2. Step 2: Convert to fraction form
    356,387.55/534,661.10 = 119,723.77/x
  3. Step 3: Cross multiply
    356,387.55x = 534,661.10 × 119,723.77
  4. Step 4: Simplify right side
    356,387.55x = 64,011,642,564.35
  5. Step 5: Solve for x
    x = 64,011,642,564.35/356,387.55
  6. Step 6: Final answer
    x = 179,612.45

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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.