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Finding the Fourth Proportional to 207,123.33, 310,681.81 and 93,190.66

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Solution

The fourth proportional to 207,123.33, 310,681.81 and 93,190.66 is: 139,784.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,123.33 : 310,681.81 = 93,190.66 : x
  2. Step 2: Convert to fraction form
    207,123.33/310,681.81 = 93,190.66/x
  3. Step 3: Cross multiply
    207,123.33x = 310,681.81 × 93,190.66
  4. Step 4: Simplify right side
    207,123.33x = 28,952,642,923.89
  5. Step 5: Solve for x
    x = 28,952,642,923.89/207,123.33
  6. Step 6: Final answer
    x = 139,784.56

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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.