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Finding the Fourth Proportional to 99,250.79, 136,973.03 and 56,229.93

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Solution

The fourth proportional to 99,250.79, 136,973.03 and 56,229.93 is: 77,601.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,250.79 : 136,973.03 = 56,229.93 : x
  2. Step 2: Convert to fraction form
    99,250.79/136,973.03 = 56,229.93/x
  3. Step 3: Cross multiply
    99,250.79x = 136,973.03 × 56,229.93
  4. Step 4: Simplify right side
    99,250.79x = 7,701,983,607.64
  5. Step 5: Solve for x
    x = 7,701,983,607.64/99,250.79
  6. Step 6: Final answer
    x = 77,601.24

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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.