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Finding the Fourth Proportional to 68,547.76, 94,619.70 and 47,108.50

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Solution

The fourth proportional to 68,547.76, 94,619.70 and 47,108.50 is: 65,026.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,547.76 : 94,619.70 = 47,108.50 : x
  2. Step 2: Convert to fraction form
    68,547.76/94,619.70 = 47,108.50/x
  3. Step 3: Cross multiply
    68,547.76x = 94,619.70 × 47,108.50
  4. Step 4: Simplify right side
    68,547.76x = 4,457,392,137.45
  5. Step 5: Solve for x
    x = 4,457,392,137.45/68,547.76
  6. Step 6: Final answer
    x = 65,026.08

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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.