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Finding the Fourth Proportional to 243,978.04, 336,088.10 and 207,562.86

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Solution

The fourth proportional to 243,978.04, 336,088.10 and 207,562.86 is: 285,924.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,978.04 : 336,088.10 = 207,562.86 : x
  2. Step 2: Convert to fraction form
    243,978.04/336,088.10 = 207,562.86/x
  3. Step 3: Cross multiply
    243,978.04x = 336,088.10 × 207,562.86
  4. Step 4: Simplify right side
    243,978.04x = 69,759,407,247.97
  5. Step 5: Solve for x
    x = 69,759,407,247.97/243,978.04
  6. Step 6: Final answer
    x = 285,924.94

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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.