Home / 374,106.16-561,382.80-137,472.76

Finding the Fourth Proportional to 374,106.16, 561,382.80 and 137,472.76

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Solution

The fourth proportional to 374,106.16, 561,382.80 and 137,472.76 is: 206,291.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,106.16 : 561,382.80 = 137,472.76 : x
  2. Step 2: Convert to fraction form
    374,106.16/561,382.80 = 137,472.76/x
  3. Step 3: Cross multiply
    374,106.16x = 561,382.80 × 137,472.76
  4. Step 4: Simplify right side
    374,106.16x = 77,174,842,932.53
  5. Step 5: Solve for x
    x = 77,174,842,932.53/374,106.16
  6. Step 6: Final answer
    x = 206,291.29

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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.