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Finding the Fourth Proportional to 98,554.25, 136,004.87 and 53,842.25

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Solution

The fourth proportional to 98,554.25, 136,004.87 and 53,842.25 is: 74,302.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,554.25 : 136,004.87 = 53,842.25 : x
  2. Step 2: Convert to fraction form
    98,554.25/136,004.87 = 53,842.25/x
  3. Step 3: Cross multiply
    98,554.25x = 136,004.87 × 53,842.25
  4. Step 4: Simplify right side
    98,554.25x = 7,322,808,686.38
  5. Step 5: Solve for x
    x = 7,322,808,686.38/98,554.25
  6. Step 6: Final answer
    x = 74,302.31

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1.5x scale

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.