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Finding the Fourth Proportional to 104,796.61, 156,482.09 and 98,876.68

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Solution

The fourth proportional to 104,796.61, 156,482.09 and 98,876.68 is: 147,642.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,796.61 : 156,482.09 = 98,876.68 : x
  2. Step 2: Convert to fraction form
    104,796.61/156,482.09 = 98,876.68/x
  3. Step 3: Cross multiply
    104,796.61x = 156,482.09 × 98,876.68
  4. Step 4: Simplify right side
    104,796.61x = 15,472,429,538.66
  5. Step 5: Solve for x
    x = 15,472,429,538.66/104,796.61
  6. Step 6: Final answer
    x = 147,642.46

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.