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Finding the Fourth Proportional to 369,548.47, 554,322.70 and 89,065.72

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Solution

The fourth proportional to 369,548.47, 554,322.70 and 89,065.72 is: 133,598.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,548.47 : 554,322.70 = 89,065.72 : x
  2. Step 2: Convert to fraction form
    369,548.47/554,322.70 = 89,065.72/x
  3. Step 3: Cross multiply
    369,548.47x = 554,322.70 × 89,065.72
  4. Step 4: Simplify right side
    369,548.47x = 49,371,149,942.52
  5. Step 5: Solve for x
    x = 49,371,149,942.52/369,548.47
  6. Step 6: Final answer
    x = 133,598.58

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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.