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Finding the Fourth Proportional to 469,901.70, 704,852.55 and 154,368.90

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Solution

The fourth proportional to 469,901.70, 704,852.55 and 154,368.90 is: 231,553.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,901.70 : 704,852.55 = 154,368.90 : x
  2. Step 2: Convert to fraction form
    469,901.70/704,852.55 = 154,368.90/x
  3. Step 3: Cross multiply
    469,901.70x = 704,852.55 × 154,368.90
  4. Step 4: Simplify right side
    469,901.70x = 108,807,312,805.70
  5. Step 5: Solve for x
    x = 108,807,312,805.70/469,901.70
  6. Step 6: Final answer
    x = 231,553.35

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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.