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Finding the Fourth Proportional to 207,517, 310,776.70 and 118,501

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Solution

The fourth proportional to 207,517, 310,776.70 and 118,501 is: 177,466.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,517 : 310,776.70 = 118,501 : x
  2. Step 2: Convert to fraction form
    207,517/310,776.70 = 118,501/x
  3. Step 3: Cross multiply
    207,517x = 310,776.70 × 118,501
  4. Step 4: Simplify right side
    207,517x = 36,827,349,726.70
  5. Step 5: Solve for x
    x = 36,827,349,726.70/207,517
  6. Step 6: Final answer
    x = 177,466.66

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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.