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Finding the Fourth Proportional to 148,940.80, 223,411.20 and 64,741.30

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Solution

The fourth proportional to 148,940.80, 223,411.20 and 64,741.30 is: 97,111.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,940.80 : 223,411.20 = 64,741.30 : x
  2. Step 2: Convert to fraction form
    148,940.80/223,411.20 = 64,741.30/x
  3. Step 3: Cross multiply
    148,940.80x = 223,411.20 × 64,741.30
  4. Step 4: Simplify right side
    148,940.80x = 14,463,931,522.56
  5. Step 5: Solve for x
    x = 14,463,931,522.56/148,940.80
  6. Step 6: Final answer
    x = 97,111.95

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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.