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Finding the Fourth Proportional to 219,437.61, 329,168.70 and 61,653.75

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Solution

The fourth proportional to 219,437.61, 329,168.70 and 61,653.75 is: 92,484.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,437.61 : 329,168.70 = 61,653.75 : x
  2. Step 2: Convert to fraction form
    219,437.61/329,168.70 = 61,653.75/x
  3. Step 3: Cross multiply
    219,437.61x = 329,168.70 × 61,653.75
  4. Step 4: Simplify right side
    219,437.61x = 20,294,484,737.63
  5. Step 5: Solve for x
    x = 20,294,484,737.63/219,437.61
  6. Step 6: Final answer
    x = 92,484.08

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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.