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Finding the Fourth Proportional to 86,592.84, 129,649.50 and 47,060.52

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Solution

The fourth proportional to 86,592.84, 129,649.50 and 47,060.52 is: 70,460.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,592.84 : 129,649.50 = 47,060.52 : x
  2. Step 2: Convert to fraction form
    86,592.84/129,649.50 = 47,060.52/x
  3. Step 3: Cross multiply
    86,592.84x = 129,649.50 × 47,060.52
  4. Step 4: Simplify right side
    86,592.84x = 6,101,372,887.74
  5. Step 5: Solve for x
    x = 6,101,372,887.74/86,592.84
  6. Step 6: Final answer
    x = 70,460.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.