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Finding the Fourth Proportional to 319,095.90, 440,355.02 and 175,856.31

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Solution

The fourth proportional to 319,095.90, 440,355.02 and 175,856.31 is: 242,683.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,095.90 : 440,355.02 = 175,856.31 : x
  2. Step 2: Convert to fraction form
    319,095.90/440,355.02 = 175,856.31/x
  3. Step 3: Cross multiply
    319,095.90x = 440,355.02 × 175,856.31
  4. Step 4: Simplify right side
    319,095.90x = 77,439,208,027.89
  5. Step 5: Solve for x
    x = 77,439,208,027.89/319,095.90
  6. Step 6: Final answer
    x = 242,683.18

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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.