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Finding the Fourth Proportional to 319,156.59, 440,430.83 and 175,929.96

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Solution

The fourth proportional to 319,156.59, 440,430.83 and 175,929.96 is: 242,780.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,156.59 : 440,430.83 = 175,929.96 : x
  2. Step 2: Convert to fraction form
    319,156.59/440,430.83 = 175,929.96/x
  3. Step 3: Cross multiply
    319,156.59x = 440,430.83 × 175,929.96
  4. Step 4: Simplify right side
    319,156.59x = 77,484,978,248.55
  5. Step 5: Solve for x
    x = 77,484,978,248.55/319,156.59
  6. Step 6: Final answer
    x = 242,780.44

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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.