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Finding the Fourth Proportional to 103,657.48, 143,045.59 and 58,335.41

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Solution

The fourth proportional to 103,657.48, 143,045.59 and 58,335.41 is: 80,501.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,657.48 : 143,045.59 = 58,335.41 : x
  2. Step 2: Convert to fraction form
    103,657.48/143,045.59 = 58,335.41/x
  3. Step 3: Cross multiply
    103,657.48x = 143,045.59 × 58,335.41
  4. Step 4: Simplify right side
    103,657.48x = 8,344,623,141.34
  5. Step 5: Solve for x
    x = 8,344,623,141.34/103,657.48
  6. Step 6: Final answer
    x = 80,501.89

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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.