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Finding the Fourth Proportional to 93,130.20, 139,695.30 and 34,008.30

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Solution

The fourth proportional to 93,130.20, 139,695.30 and 34,008.30 is: 51,012.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,130.20 : 139,695.30 = 34,008.30 : x
  2. Step 2: Convert to fraction form
    93,130.20/139,695.30 = 34,008.30/x
  3. Step 3: Cross multiply
    93,130.20x = 139,695.30 × 34,008.30
  4. Step 4: Simplify right side
    93,130.20x = 4,750,799,670.99
  5. Step 5: Solve for x
    x = 4,750,799,670.99/93,130.20
  6. Step 6: Final answer
    x = 51,012.45

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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.