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Finding the Fourth Proportional to 207,295.34, 310,444.73 and 118,278.98

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Solution

The fourth proportional to 207,295.34, 310,444.73 and 118,278.98 is: 177,134.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,295.34 : 310,444.73 = 118,278.98 : x
  2. Step 2: Convert to fraction form
    207,295.34/310,444.73 = 118,278.98/x
  3. Step 3: Cross multiply
    207,295.34x = 310,444.73 × 118,278.98
  4. Step 4: Simplify right side
    207,295.34x = 36,719,083,867.16
  5. Step 5: Solve for x
    x = 36,719,083,867.16/207,295.34
  6. Step 6: Final answer
    x = 177,134.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.