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Finding the Fourth Proportional to 92,030.58, 138,015.90 and 29,686.50

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Solution

The fourth proportional to 92,030.58, 138,015.90 and 29,686.50 is: 44,520.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,030.58 : 138,015.90 = 29,686.50 : x
  2. Step 2: Convert to fraction form
    92,030.58/138,015.90 = 29,686.50/x
  3. Step 3: Cross multiply
    92,030.58x = 138,015.90 × 29,686.50
  4. Step 4: Simplify right side
    92,030.58x = 4,097,209,015.35
  5. Step 5: Solve for x
    x = 4,097,209,015.35/92,030.58
  6. Step 6: Final answer
    x = 44,520.08

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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.