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Finding the Fourth Proportional to 292,611.04, 438,916.57 and 82,248.98

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Solution

The fourth proportional to 292,611.04, 438,916.57 and 82,248.98 is: 123,373.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,611.04 : 438,916.57 = 82,248.98 : x
  2. Step 2: Convert to fraction form
    292,611.04/438,916.57 = 82,248.98/x
  3. Step 3: Cross multiply
    292,611.04x = 438,916.57 × 82,248.98
  4. Step 4: Simplify right side
    292,611.04x = 36,100,439,776.35
  5. Step 5: Solve for x
    x = 36,100,439,776.35/292,611.04
  6. Step 6: Final answer
    x = 123,373.47

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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.