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Finding the Fourth Proportional to 216,823.20, 325,234.80 and 181,831.20

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Solution

The fourth proportional to 216,823.20, 325,234.80 and 181,831.20 is: 272,746.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,823.20 : 325,234.80 = 181,831.20 : x
  2. Step 2: Convert to fraction form
    216,823.20/325,234.80 = 181,831.20/x
  3. Step 3: Cross multiply
    216,823.20x = 325,234.80 × 181,831.20
  4. Step 4: Simplify right side
    216,823.20x = 59,137,833,965.76
  5. Step 5: Solve for x
    x = 59,137,833,965.76/216,823.20
  6. Step 6: Final answer
    x = 272,746.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.