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Finding the Fourth Proportional to 67,419.70, 93,004.45 and 41,916.40

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Solution

The fourth proportional to 67,419.70, 93,004.45 and 41,916.40 is: 57,823.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,419.70 : 93,004.45 = 41,916.40 : x
  2. Step 2: Convert to fraction form
    67,419.70/93,004.45 = 41,916.40/x
  3. Step 3: Cross multiply
    67,419.70x = 93,004.45 × 41,916.40
  4. Step 4: Simplify right side
    67,419.70x = 3,898,411,312.08
  5. Step 5: Solve for x
    x = 3,898,411,312.08/67,419.70
  6. Step 6: Final answer
    x = 57,823.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.