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Finding the Fourth Proportional to 235,612.33, 325,135.51 and 128,182.77

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Solution

The fourth proportional to 235,612.33, 325,135.51 and 128,182.77 is: 176,887.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,612.33 : 325,135.51 = 128,182.77 : x
  2. Step 2: Convert to fraction form
    235,612.33/325,135.51 = 128,182.77/x
  3. Step 3: Cross multiply
    235,612.33x = 325,135.51 × 128,182.77
  4. Step 4: Simplify right side
    235,612.33x = 41,676,769,976.71
  5. Step 5: Solve for x
    x = 41,676,769,976.71/235,612.33
  6. Step 6: Final answer
    x = 176,887.05

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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.