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Finding the Fourth Proportional to 235,521.91, 325,017.06 and 128,089.63

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Solution

The fourth proportional to 235,521.91, 325,017.06 and 128,089.63 is: 176,761.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,521.91 : 325,017.06 = 128,089.63 : x
  2. Step 2: Convert to fraction form
    235,521.91/325,017.06 = 128,089.63/x
  3. Step 3: Cross multiply
    235,521.91x = 325,017.06 × 128,089.63
  4. Step 4: Simplify right side
    235,521.91x = 41,631,314,959.09
  5. Step 5: Solve for x
    x = 41,631,314,959.09/235,521.91
  6. Step 6: Final answer
    x = 176,761.96

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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.