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Finding the Fourth Proportional to 235,884.42, 325,526.40 and 128,460.42

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Solution

The fourth proportional to 235,884.42, 325,526.40 and 128,460.42 is: 177,278.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,884.42 : 325,526.40 = 128,460.42 : x
  2. Step 2: Convert to fraction form
    235,884.42/325,526.40 = 128,460.42/x
  3. Step 3: Cross multiply
    235,884.42x = 325,526.40 × 128,460.42
  4. Step 4: Simplify right side
    235,884.42x = 41,817,258,065.09
  5. Step 5: Solve for x
    x = 41,817,258,065.09/235,884.42
  6. Step 6: Final answer
    x = 177,278.59

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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.