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Finding the Fourth Proportional to 160,632.60, 221,674.86 and 89,013.48

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Solution

The fourth proportional to 160,632.60, 221,674.86 and 89,013.48 is: 122,839.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,632.60 : 221,674.86 = 89,013.48 : x
  2. Step 2: Convert to fraction form
    160,632.60/221,674.86 = 89,013.48/x
  3. Step 3: Cross multiply
    160,632.60x = 221,674.86 × 89,013.48
  4. Step 4: Simplify right side
    160,632.60x = 19,732,050,717.11
  5. Step 5: Solve for x
    x = 19,732,050,717.11/160,632.60
  6. Step 6: Final answer
    x = 122,839.64

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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.