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Finding the Fourth Proportional to 93,286.01, 128,633.06 and 63,018.81

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Solution

The fourth proportional to 93,286.01, 128,633.06 and 63,018.81 is: 86,897.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,286.01 : 128,633.06 = 63,018.81 : x
  2. Step 2: Convert to fraction form
    93,286.01/128,633.06 = 63,018.81/x
  3. Step 3: Cross multiply
    93,286.01x = 128,633.06 × 63,018.81
  4. Step 4: Simplify right side
    93,286.01x = 8,106,302,525.41
  5. Step 5: Solve for x
    x = 8,106,302,525.41/93,286.01
  6. Step 6: Final answer
    x = 86,897.30

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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.