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Finding the Fourth Proportional to 169,210.20, 253,636.68 and 56,783.82

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Solution

The fourth proportional to 169,210.20, 253,636.68 and 56,783.82 is: 85,115.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,210.20 : 253,636.68 = 56,783.82 : x
  2. Step 2: Convert to fraction form
    169,210.20/253,636.68 = 56,783.82/x
  3. Step 3: Cross multiply
    169,210.20x = 253,636.68 × 56,783.82
  4. Step 4: Simplify right side
    169,210.20x = 14,402,459,582.52
  5. Step 5: Solve for x
    x = 14,402,459,582.52/169,210.20
  6. Step 6: Final answer
    x = 85,115.79

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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.