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Finding the Fourth Proportional to 319,060.80, 440,303.00 and 175,820.81

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Solution

The fourth proportional to 319,060.80, 440,303.00 and 175,820.81 is: 242,632.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,060.80 : 440,303.00 = 175,820.81 : x
  2. Step 2: Convert to fraction form
    319,060.80/440,303.00 = 175,820.81/x
  3. Step 3: Cross multiply
    319,060.80x = 440,303.00 × 175,820.81
  4. Step 4: Simplify right side
    319,060.80x = 77,414,427,024.81
  5. Step 5: Solve for x
    x = 77,414,427,024.81/319,060.80
  6. Step 6: Final answer
    x = 242,632.21

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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.