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Finding the Fourth Proportional to 235,528.77, 325,020.34 and 128,098.74

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Solution

The fourth proportional to 235,528.77, 325,020.34 and 128,098.74 is: 176,771.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,528.77 : 325,020.34 = 128,098.74 : x
  2. Step 2: Convert to fraction form
    235,528.77/325,020.34 = 128,098.74/x
  3. Step 3: Cross multiply
    235,528.77x = 325,020.34 × 128,098.74
  4. Step 4: Simplify right side
    235,528.77x = 41,634,694,083.02
  5. Step 5: Solve for x
    x = 41,634,694,083.02/235,528.77
  6. Step 6: Final answer
    x = 176,771.16

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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.