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Finding the Fourth Proportional to 259,210.76, 388,816.14 and 62,218.76

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Solution

The fourth proportional to 259,210.76, 388,816.14 and 62,218.76 is: 93,328.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,210.76 : 388,816.14 = 62,218.76 : x
  2. Step 2: Convert to fraction form
    259,210.76/388,816.14 = 62,218.76/x
  3. Step 3: Cross multiply
    259,210.76x = 388,816.14 × 62,218.76
  4. Step 4: Simplify right side
    259,210.76x = 24,191,658,098.79
  5. Step 5: Solve for x
    x = 24,191,658,098.79/259,210.76
  6. Step 6: Final answer
    x = 93,328.14

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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.