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Finding the Fourth Proportional to 313,901.80, 470,909.10 and 114,501.92

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Solution

The fourth proportional to 313,901.80, 470,909.10 and 114,501.92 is: 171,773.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,901.80 : 470,909.10 = 114,501.92 : x
  2. Step 2: Convert to fraction form
    313,901.80/470,909.10 = 114,501.92/x
  3. Step 3: Cross multiply
    313,901.80x = 470,909.10 × 114,501.92
  4. Step 4: Simplify right side
    313,901.80x = 53,919,996,095.47
  5. Step 5: Solve for x
    x = 53,919,996,095.47/313,901.80
  6. Step 6: Final answer
    x = 171,773.45

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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.