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Finding the Fourth Proportional to 92,681.99, 139,023.74 and 60,688.04

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Solution

The fourth proportional to 92,681.99, 139,023.74 and 60,688.04 is: 91,032.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,681.99 : 139,023.74 = 60,688.04 : x
  2. Step 2: Convert to fraction form
    92,681.99/139,023.74 = 60,688.04/x
  3. Step 3: Cross multiply
    92,681.99x = 139,023.74 × 60,688.04
  4. Step 4: Simplify right side
    92,681.99x = 8,437,077,750.67
  5. Step 5: Solve for x
    x = 8,437,077,750.67/92,681.99
  6. Step 6: Final answer
    x = 91,032.55

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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.