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Finding the Fourth Proportional to 116,482.95, 160,349.79 and 86,211.22

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Solution

The fourth proportional to 116,482.95, 160,349.79 and 86,211.22 is: 118,677.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,482.95 : 160,349.79 = 86,211.22 : x
  2. Step 2: Convert to fraction form
    116,482.95/160,349.79 = 86,211.22/x
  3. Step 3: Cross multiply
    116,482.95x = 160,349.79 × 86,211.22
  4. Step 4: Simplify right side
    116,482.95x = 13,823,951,022.64
  5. Step 5: Solve for x
    x = 13,823,951,022.64/116,482.95
  6. Step 6: Final answer
    x = 118,677.89

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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.