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Finding the Fourth Proportional to 236,098.58, 325,806.54 and 128,666.28

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Solution

The fourth proportional to 236,098.58, 325,806.54 and 128,666.28 is: 177,554.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,098.58 : 325,806.54 = 128,666.28 : x
  2. Step 2: Convert to fraction form
    236,098.58/325,806.54 = 128,666.28/x
  3. Step 3: Cross multiply
    236,098.58x = 325,806.54 × 128,666.28
  4. Step 4: Simplify right side
    236,098.58x = 41,920,315,501.47
  5. Step 5: Solve for x
    x = 41,920,315,501.47/236,098.58
  6. Step 6: Final answer
    x = 177,554.29

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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.