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Finding the Fourth Proportional to 235,544.64, 325,053.84 and 128,117.04

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Solution

The fourth proportional to 235,544.64, 325,053.84 and 128,117.04 is: 176,802.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,544.64 : 325,053.84 = 128,117.04 : x
  2. Step 2: Convert to fraction form
    235,544.64/325,053.84 = 128,117.04/x
  3. Step 3: Cross multiply
    235,544.64x = 325,053.84 × 128,117.04
  4. Step 4: Simplify right side
    235,544.64x = 41,644,935,821.43
  5. Step 5: Solve for x
    x = 41,644,935,821.43/235,544.64
  6. Step 6: Final answer
    x = 176,802.73

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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.