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Finding the Fourth Proportional to 58,066.60, 87,128.70 and 33,125.80

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Solution

The fourth proportional to 58,066.60, 87,128.70 and 33,125.80 is: 49,705.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,066.60 : 87,128.70 = 33,125.80 : x
  2. Step 2: Convert to fraction form
    58,066.60/87,128.70 = 33,125.80/x
  3. Step 3: Cross multiply
    58,066.60x = 87,128.70 × 33,125.80
  4. Step 4: Simplify right side
    58,066.60x = 2,886,207,890.46
  5. Step 5: Solve for x
    x = 2,886,207,890.46/58,066.60
  6. Step 6: Final answer
    x = 49,705.13

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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.