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Finding the Fourth Proportional to 58,355.60, 87,402.11 and 40,903.34

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Solution

The fourth proportional to 58,355.60, 87,402.11 and 40,903.34 is: 61,262.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,355.60 : 87,402.11 = 40,903.34 : x
  2. Step 2: Convert to fraction form
    58,355.60/87,402.11 = 40,903.34/x
  3. Step 3: Cross multiply
    58,355.60x = 87,402.11 × 40,903.34
  4. Step 4: Simplify right side
    58,355.60x = 3,575,037,580.52
  5. Step 5: Solve for x
    x = 3,575,037,580.52/58,355.60
  6. Step 6: Final answer
    x = 61,262.98

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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.