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Finding the Fourth Proportional to 103,304.61, 154,624.71 and 53,316.61

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Solution

The fourth proportional to 103,304.61, 154,624.71 and 53,316.61 is: 79,803.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,304.61 : 154,624.71 = 53,316.61 : x
  2. Step 2: Convert to fraction form
    103,304.61/154,624.71 = 53,316.61/x
  3. Step 3: Cross multiply
    103,304.61x = 154,624.71 × 53,316.61
  4. Step 4: Simplify right side
    103,304.61x = 8,244,065,359.43
  5. Step 5: Solve for x
    x = 8,244,065,359.43/103,304.61
  6. Step 6: Final answer
    x = 79,803.46

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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.