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Finding the Fourth Proportional to 98,602.04, 136,070.82 and 53,890.04

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Solution

The fourth proportional to 98,602.04, 136,070.82 and 53,890.04 is: 74,368.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,602.04 : 136,070.82 = 53,890.04 : x
  2. Step 2: Convert to fraction form
    98,602.04/136,070.82 = 53,890.04/x
  3. Step 3: Cross multiply
    98,602.04x = 136,070.82 × 53,890.04
  4. Step 4: Simplify right side
    98,602.04x = 7,332,861,932.63
  5. Step 5: Solve for x
    x = 7,332,861,932.63/98,602.04
  6. Step 6: Final answer
    x = 74,368.26

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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.