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Finding the Fourth Proportional to 236,075.68, 325,780.14 and 128,646.64

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Solution

The fourth proportional to 236,075.68, 325,780.14 and 128,646.64 is: 177,530.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,075.68 : 325,780.14 = 128,646.64 : x
  2. Step 2: Convert to fraction form
    236,075.68/325,780.14 = 128,646.64/x
  3. Step 3: Cross multiply
    236,075.68x = 325,780.14 × 128,646.64
  4. Step 4: Simplify right side
    236,075.68x = 41,910,520,389.73
  5. Step 5: Solve for x
    x = 41,910,520,389.73/236,075.68
  6. Step 6: Final answer
    x = 177,530.02

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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.