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Finding the Fourth Proportional to 194,562.71, 291,932.73 and 99,859.40

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Solution

The fourth proportional to 194,562.71, 291,932.73 and 99,859.40 is: 149,834.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,562.71 : 291,932.73 = 99,859.40 : x
  2. Step 2: Convert to fraction form
    194,562.71/291,932.73 = 99,859.40/x
  3. Step 3: Cross multiply
    194,562.71x = 291,932.73 × 99,859.40
  4. Step 4: Simplify right side
    194,562.71x = 29,152,225,798.50
  5. Step 5: Solve for x
    x = 29,152,225,798.50/194,562.71
  6. Step 6: Final answer
    x = 149,834.60

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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.