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Finding the Fourth Proportional to 97,277.80, 145,916.70 and 34,940.20

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Solution

The fourth proportional to 97,277.80, 145,916.70 and 34,940.20 is: 52,410.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,277.80 : 145,916.70 = 34,940.20 : x
  2. Step 2: Convert to fraction form
    97,277.80/145,916.70 = 34,940.20/x
  3. Step 3: Cross multiply
    97,277.80x = 145,916.70 × 34,940.20
  4. Step 4: Simplify right side
    97,277.80x = 5,098,358,681.34
  5. Step 5: Solve for x
    x = 5,098,358,681.34/97,277.80
  6. Step 6: Final answer
    x = 52,410.30

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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.