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Finding the Fourth Proportional to 93,113.70, 128,491.30 and 52,274.82

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Solution

The fourth proportional to 93,113.70, 128,491.30 and 52,274.82 is: 72,136.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,113.70 : 128,491.30 = 52,274.82 : x
  2. Step 2: Convert to fraction form
    93,113.70/128,491.30 = 52,274.82/x
  3. Step 3: Cross multiply
    93,113.70x = 128,491.30 × 52,274.82
  4. Step 4: Simplify right side
    93,113.70x = 6,716,859,579.07
  5. Step 5: Solve for x
    x = 6,716,859,579.07/93,113.70
  6. Step 6: Final answer
    x = 72,136.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.