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Finding the Fourth Proportional to 159,533.73, 220,155.59 and 86,936.46

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Solution

The fourth proportional to 159,533.73, 220,155.59 and 86,936.46 is: 119,971.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,533.73 : 220,155.59 = 86,936.46 : x
  2. Step 2: Convert to fraction form
    159,533.73/220,155.59 = 86,936.46/x
  3. Step 3: Cross multiply
    159,533.73x = 220,155.59 × 86,936.46
  4. Step 4: Simplify right side
    159,533.73x = 19,139,547,209.13
  5. Step 5: Solve for x
    x = 19,139,547,209.13/159,533.73
  6. Step 6: Final answer
    x = 119,971.79

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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.