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Finding the Fourth Proportional to 368,264.48, 508,200.72 and 207,118.88

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Solution

The fourth proportional to 368,264.48, 508,200.72 and 207,118.88 is: 285,821.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,264.48 : 508,200.72 = 207,118.88 : x
  2. Step 2: Convert to fraction form
    368,264.48/508,200.72 = 207,118.88/x
  3. Step 3: Cross multiply
    368,264.48x = 508,200.72 × 207,118.88
  4. Step 4: Simplify right side
    368,264.48x = 105,257,963,941.59
  5. Step 5: Solve for x
    x = 105,257,963,941.59/368,264.48
  6. Step 6: Final answer
    x = 285,821.66

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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.