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Finding the Fourth Proportional to 145,893.97, 201,499.76 and 98,064.28

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Solution

The fourth proportional to 145,893.97, 201,499.76 and 98,064.28 is: 135,440.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,893.97 : 201,499.76 = 98,064.28 : x
  2. Step 2: Convert to fraction form
    145,893.97/201,499.76 = 98,064.28/x
  3. Step 3: Cross multiply
    145,893.97x = 201,499.76 × 98,064.28
  4. Step 4: Simplify right side
    145,893.97x = 19,759,929,182.31
  5. Step 5: Solve for x
    x = 19,759,929,182.31/145,893.97
  6. Step 6: Final answer
    x = 135,440.34

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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.