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Finding the Fourth Proportional to 117,547.40, 162,215.41 and 67,246.40

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Solution

The fourth proportional to 117,547.40, 162,215.41 and 67,246.40 is: 92,800.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,547.40 : 162,215.41 = 67,246.40 : x
  2. Step 2: Convert to fraction form
    117,547.40/162,215.41 = 67,246.40/x
  3. Step 3: Cross multiply
    117,547.40x = 162,215.41 × 67,246.40
  4. Step 4: Simplify right side
    117,547.40x = 10,908,402,010.79
  5. Step 5: Solve for x
    x = 10,908,402,010.79/117,547.40
  6. Step 6: Final answer
    x = 92,800.03

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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.