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Finding the Fourth Proportional to 93,258.72, 139,907.97 and 30,082.40

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Solution

The fourth proportional to 93,258.72, 139,907.97 and 30,082.40 is: 45,130.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,258.72 : 139,907.97 = 30,082.40 : x
  2. Step 2: Convert to fraction form
    93,258.72/139,907.97 = 30,082.40/x
  3. Step 3: Cross multiply
    93,258.72x = 139,907.97 × 30,082.40
  4. Step 4: Simplify right side
    93,258.72x = 4,208,766,817.19
  5. Step 5: Solve for x
    x = 4,208,766,817.19/93,258.72
  6. Step 6: Final answer
    x = 45,130.01

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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.