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Finding the Fourth Proportional to 93,156.72, 139,711.32 and 29,963.76

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Solution

The fourth proportional to 93,156.72, 139,711.32 and 29,963.76 is: 44,938.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,156.72 : 139,711.32 = 29,963.76 : x
  2. Step 2: Convert to fraction form
    93,156.72/139,711.32 = 29,963.76/x
  3. Step 3: Cross multiply
    93,156.72x = 139,711.32 × 29,963.76
  4. Step 4: Simplify right side
    93,156.72x = 4,186,276,461.76
  5. Step 5: Solve for x
    x = 4,186,276,461.76/93,156.72
  6. Step 6: Final answer
    x = 44,938.00

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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.