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Finding the Fourth Proportional to 235,674.77, 325,228.43 and 128,242.95

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Solution

The fourth proportional to 235,674.77, 325,228.43 and 128,242.95 is: 176,973.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,674.77 : 325,228.43 = 128,242.95 : x
  2. Step 2: Convert to fraction form
    235,674.77/325,228.43 = 128,242.95/x
  3. Step 3: Cross multiply
    235,674.77x = 325,228.43 × 128,242.95
  4. Step 4: Simplify right side
    235,674.77x = 41,708,252,388.07
  5. Step 5: Solve for x
    x = 41,708,252,388.07/235,674.77
  6. Step 6: Final answer
    x = 176,973.77

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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.