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Finding the Fourth Proportional to 93,302.88, 128,713.62 and 63,098.79

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Solution

The fourth proportional to 93,302.88, 128,713.62 and 63,098.79 is: 87,046.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,302.88 : 128,713.62 = 63,098.79 : x
  2. Step 2: Convert to fraction form
    93,302.88/128,713.62 = 63,098.79/x
  3. Step 3: Cross multiply
    93,302.88x = 128,713.62 × 63,098.79
  4. Step 4: Simplify right side
    93,302.88x = 8,121,673,678.52
  5. Step 5: Solve for x
    x = 8,121,673,678.52/93,302.88
  6. Step 6: Final answer
    x = 87,046.33

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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.