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Finding the Fourth Proportional to 159,547.15, 220,175.12 and 86,950.08

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Solution

The fourth proportional to 159,547.15, 220,175.12 and 86,950.08 is: 119,991.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,547.15 : 220,175.12 = 86,950.08 : x
  2. Step 2: Convert to fraction form
    159,547.15/220,175.12 = 86,950.08/x
  3. Step 3: Cross multiply
    159,547.15x = 220,175.12 × 86,950.08
  4. Step 4: Simplify right side
    159,547.15x = 19,144,244,298.01
  5. Step 5: Solve for x
    x = 19,144,244,298.01/159,547.15
  6. Step 6: Final answer
    x = 119,991.14

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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.