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Finding the Fourth Proportional to 86,628.96, 119,547.95 and 48,903.21

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Solution

The fourth proportional to 86,628.96, 119,547.95 and 48,903.21 is: 67,486.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,628.96 : 119,547.95 = 48,903.21 : x
  2. Step 2: Convert to fraction form
    86,628.96/119,547.95 = 48,903.21/x
  3. Step 3: Cross multiply
    86,628.96x = 119,547.95 × 48,903.21
  4. Step 4: Simplify right side
    86,628.96x = 5,846,278,259.40
  5. Step 5: Solve for x
    x = 5,846,278,259.40/86,628.96
  6. Step 6: Final answer
    x = 67,486.42

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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.