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Finding the Fourth Proportional to 369,653.81, 554,480.87 and 156,366.42

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Solution

The fourth proportional to 369,653.81, 554,480.87 and 156,366.42 is: 234,549.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,653.81 : 554,480.87 = 156,366.42 : x
  2. Step 2: Convert to fraction form
    369,653.81/554,480.87 = 156,366.42/x
  3. Step 3: Cross multiply
    369,653.81x = 554,480.87 × 156,366.42
  4. Step 4: Simplify right side
    369,653.81x = 86,702,187,818.55
  5. Step 5: Solve for x
    x = 86,702,187,818.55/369,653.81
  6. Step 6: Final answer
    x = 234,549.70

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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.