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Finding the Fourth Proportional to 92,580, 138,870.06 and 22,459.32

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Solution

The fourth proportional to 92,580, 138,870.06 and 22,459.32 is: 33,688.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,580 : 138,870.06 = 22,459.32 : x
  2. Step 2: Convert to fraction form
    92,580/138,870.06 = 22,459.32/x
  3. Step 3: Cross multiply
    92,580x = 138,870.06 × 22,459.32
  4. Step 4: Simplify right side
    92,580x = 3,118,927,115.96
  5. Step 5: Solve for x
    x = 3,118,927,115.96/92,580
  6. Step 6: Final answer
    x = 33,688.99

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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.