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Finding the Fourth Proportional to 111,383.91, 153,710.06 and 63,637.11

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Solution

The fourth proportional to 111,383.91, 153,710.06 and 63,637.11 is: 87,819.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,383.91 : 153,710.06 = 63,637.11 : x
  2. Step 2: Convert to fraction form
    111,383.91/153,710.06 = 63,637.11/x
  3. Step 3: Cross multiply
    111,383.91x = 153,710.06 × 63,637.11
  4. Step 4: Simplify right side
    111,383.91x = 9,781,663,678.14
  5. Step 5: Solve for x
    x = 9,781,663,678.14/111,383.91
  6. Step 6: Final answer
    x = 87,819.36

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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.