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Finding the Fourth Proportional to 369,957.79, 554,936.96 and 89,475.31

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Solution

The fourth proportional to 369,957.79, 554,936.96 and 89,475.31 is: 134,213.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,957.79 : 554,936.96 = 89,475.31 : x
  2. Step 2: Convert to fraction form
    369,957.79/554,936.96 = 89,475.31/x
  3. Step 3: Cross multiply
    369,957.79x = 554,936.96 × 89,475.31
  4. Step 4: Simplify right side
    369,957.79x = 49,653,156,526.46
  5. Step 5: Solve for x
    x = 49,653,156,526.46/369,957.79
  6. Step 6: Final answer
    x = 134,213.03

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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.