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Finding the Fourth Proportional to 99,224.94, 136,931.91 and 53,903.82

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Solution

The fourth proportional to 99,224.94, 136,931.91 and 53,903.82 is: 74,388.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,224.94 : 136,931.91 = 53,903.82 : x
  2. Step 2: Convert to fraction form
    99,224.94/136,931.91 = 53,903.82/x
  3. Step 3: Cross multiply
    99,224.94x = 136,931.91 × 53,903.82
  4. Step 4: Simplify right side
    99,224.94x = 7,381,153,028.90
  5. Step 5: Solve for x
    x = 7,381,153,028.90/99,224.94
  6. Step 6: Final answer
    x = 74,388.08

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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.