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Finding the Fourth Proportional to 152,210.60, 228,315.90 and 147,836.60

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Solution

The fourth proportional to 152,210.60, 228,315.90 and 147,836.60 is: 221,754.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,210.60 : 228,315.90 = 147,836.60 : x
  2. Step 2: Convert to fraction form
    152,210.60/228,315.90 = 147,836.60/x
  3. Step 3: Cross multiply
    152,210.60x = 228,315.90 × 147,836.60
  4. Step 4: Simplify right side
    152,210.60x = 33,753,446,381.94
  5. Step 5: Solve for x
    x = 33,753,446,381.94/152,210.60
  6. Step 6: Final answer
    x = 221,754.90

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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.