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Finding the Fourth Proportional to 99,142.94, 136,713.73 and 58,848.95

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Solution

The fourth proportional to 99,142.94, 136,713.73 and 58,848.95 is: 81,150.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,142.94 : 136,713.73 = 58,848.95 : x
  2. Step 2: Convert to fraction form
    99,142.94/136,713.73 = 58,848.95/x
  3. Step 3: Cross multiply
    99,142.94x = 136,713.73 × 58,848.95
  4. Step 4: Simplify right side
    99,142.94x = 8,045,459,461.08
  5. Step 5: Solve for x
    x = 8,045,459,461.08/99,142.94
  6. Step 6: Final answer
    x = 81,150.10

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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.