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Finding the Fourth Proportional to 93,212.77, 128,642.57 and 57,423.73

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Solution

The fourth proportional to 93,212.77, 128,642.57 and 57,423.73 is: 79,250.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,212.77 : 128,642.57 = 57,423.73 : x
  2. Step 2: Convert to fraction form
    93,212.77/128,642.57 = 57,423.73/x
  3. Step 3: Cross multiply
    93,212.77x = 128,642.57 × 57,423.73
  4. Step 4: Simplify right side
    93,212.77x = 7,387,136,206.19
  5. Step 5: Solve for x
    x = 7,387,136,206.19/93,212.77
  6. Step 6: Final answer
    x = 79,250.26

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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.