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Finding the Fourth Proportional to 207,326.30, 310,989.46 and 102,350.30

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Solution

The fourth proportional to 207,326.30, 310,989.46 and 102,350.30 is: 153,525.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,326.30 : 310,989.46 = 102,350.30 : x
  2. Step 2: Convert to fraction form
    207,326.30/310,989.46 = 102,350.30/x
  3. Step 3: Cross multiply
    207,326.30x = 310,989.46 × 102,350.30
  4. Step 4: Simplify right side
    207,326.30x = 31,829,864,527.84
  5. Step 5: Solve for x
    x = 31,829,864,527.84/207,326.30
  6. Step 6: Final answer
    x = 153,525.45

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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.