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Finding the Fourth Proportional to 93,170.84, 139,784.24 and 29,126.40

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Solution

The fourth proportional to 93,170.84, 139,784.24 and 29,126.40 is: 43,698.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,170.84 : 139,784.24 = 29,126.40 : x
  2. Step 2: Convert to fraction form
    93,170.84/139,784.24 = 29,126.40/x
  3. Step 3: Cross multiply
    93,170.84x = 139,784.24 × 29,126.40
  4. Step 4: Simplify right side
    93,170.84x = 4,071,411,542.30
  5. Step 5: Solve for x
    x = 4,071,411,542.30/93,170.84
  6. Step 6: Final answer
    x = 43,698.35

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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.