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Finding the Fourth Proportional to 170,753.54, 235,655.96 and 127,658.40

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Solution

The fourth proportional to 170,753.54, 235,655.96 and 127,658.40 is: 176,180.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,753.54 : 235,655.96 = 127,658.40 : x
  2. Step 2: Convert to fraction form
    170,753.54/235,655.96 = 127,658.40/x
  3. Step 3: Cross multiply
    170,753.54x = 235,655.96 × 127,658.40
  4. Step 4: Simplify right side
    170,753.54x = 30,083,462,804.06
  5. Step 5: Solve for x
    x = 30,083,462,804.06/170,753.54
  6. Step 6: Final answer
    x = 176,180.61

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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.