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Finding the Fourth Proportional to 93,222.63, 128,642.81 and 52,931.12

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Solution

The fourth proportional to 93,222.63, 128,642.81 and 52,931.12 is: 73,042.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,222.63 : 128,642.81 = 52,931.12 : x
  2. Step 2: Convert to fraction form
    93,222.63/128,642.81 = 52,931.12/x
  3. Step 3: Cross multiply
    93,222.63x = 128,642.81 × 52,931.12
  4. Step 4: Simplify right side
    93,222.63x = 6,809,207,105.38
  5. Step 5: Solve for x
    x = 6,809,207,105.38/93,222.63
  6. Step 6: Final answer
    x = 73,042.43

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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.