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Finding the Fourth Proportional to 99,737.51, 137,637.80 and 63,927.53

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Solution

The fourth proportional to 99,737.51, 137,637.80 and 63,927.53 is: 88,220.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,737.51 : 137,637.80 = 63,927.53 : x
  2. Step 2: Convert to fraction form
    99,737.51/137,637.80 = 63,927.53/x
  3. Step 3: Cross multiply
    99,737.51x = 137,637.80 × 63,927.53
  4. Step 4: Simplify right side
    99,737.51x = 8,798,844,336.68
  5. Step 5: Solve for x
    x = 8,798,844,336.68/99,737.51
  6. Step 6: Final answer
    x = 88,220.01

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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.