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Finding the Fourth Proportional to 117,547.15, 162,215.06 and 67,246.15

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Solution

The fourth proportional to 117,547.15, 162,215.06 and 67,246.15 is: 92,799.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,547.15 : 162,215.06 = 67,246.15 : x
  2. Step 2: Convert to fraction form
    117,547.15/162,215.06 = 67,246.15/x
  3. Step 3: Cross multiply
    117,547.15x = 162,215.06 × 67,246.15
  4. Step 4: Simplify right side
    117,547.15x = 10,908,338,257.02
  5. Step 5: Solve for x
    x = 10,908,338,257.02/117,547.15
  6. Step 6: Final answer
    x = 92,799.68

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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.