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Finding the Fourth Proportional to 319,773.60, 441,276 and 176,530.57

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Solution

The fourth proportional to 319,773.60, 441,276 and 176,530.57 is: 243,605.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,773.60 : 441,276 = 176,530.57 : x
  2. Step 2: Convert to fraction form
    319,773.60/441,276 = 176,530.57/x
  3. Step 3: Cross multiply
    319,773.60x = 441,276 × 176,530.57
  4. Step 4: Simplify right side
    319,773.60x = 77,898,703,807.32
  5. Step 5: Solve for x
    x = 77,898,703,807.32/319,773.60
  6. Step 6: Final answer
    x = 243,605.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.