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Finding the Fourth Proportional to 98,899.61, 136,478.63 and 58,063.07

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Solution

The fourth proportional to 98,899.61, 136,478.63 and 58,063.07 is: 80,125.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,899.61 : 136,478.63 = 58,063.07 : x
  2. Step 2: Convert to fraction form
    98,899.61/136,478.63 = 58,063.07/x
  3. Step 3: Cross multiply
    98,899.61x = 136,478.63 × 58,063.07
  4. Step 4: Simplify right side
    98,899.61x = 7,924,367,274.49
  5. Step 5: Solve for x
    x = 7,924,367,274.49/98,899.61
  6. Step 6: Final answer
    x = 80,125.37

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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.