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Finding the Fourth Proportional to 225,287.20, 310,685.58 and 152,700.64

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Solution

The fourth proportional to 225,287.20, 310,685.58 and 152,700.64 is: 210,584.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,287.20 : 310,685.58 = 152,700.64 : x
  2. Step 2: Convert to fraction form
    225,287.20/310,685.58 = 152,700.64/x
  3. Step 3: Cross multiply
    225,287.20x = 310,685.58 × 152,700.64
  4. Step 4: Simplify right side
    225,287.20x = 47,441,886,904.77
  5. Step 5: Solve for x
    x = 47,441,886,904.77/225,287.20
  6. Step 6: Final answer
    x = 210,584.03

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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.