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Finding the Fourth Proportional to 356,681.92, 535,254.76 and 154,475.56

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Solution

The fourth proportional to 356,681.92, 535,254.76 and 154,475.56 is: 231,813.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,681.92 : 535,254.76 = 154,475.56 : x
  2. Step 2: Convert to fraction form
    356,681.92/535,254.76 = 154,475.56/x
  3. Step 3: Cross multiply
    356,681.92x = 535,254.76 × 154,475.56
  4. Step 4: Simplify right side
    356,681.92x = 82,683,778,793.67
  5. Step 5: Solve for x
    x = 82,683,778,793.67/356,681.92
  6. Step 6: Final answer
    x = 231,813.77

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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.