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Finding the Fourth Proportional to 559,669.67, 839,520.95 and 154,865.20

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Solution

The fourth proportional to 559,669.67, 839,520.95 and 154,865.20 is: 232,302.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,669.67 : 839,520.95 = 154,865.20 : x
  2. Step 2: Convert to fraction form
    559,669.67/839,520.95 = 154,865.20/x
  3. Step 3: Cross multiply
    559,669.67x = 839,520.95 × 154,865.20
  4. Step 4: Simplify right side
    559,669.67x = 130,012,576,952.81
  5. Step 5: Solve for x
    x = 130,012,576,952.81/559,669.67
  6. Step 6: Final answer
    x = 232,302.35

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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.