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Finding the Fourth Proportional to 92,708.91, 139,068.90 and 26,154.72

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Solution

The fourth proportional to 92,708.91, 139,068.90 and 26,154.72 is: 39,233.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,708.91 : 139,068.90 = 26,154.72 : x
  2. Step 2: Convert to fraction form
    92,708.91/139,068.90 = 26,154.72/x
  3. Step 3: Cross multiply
    92,708.91x = 139,068.90 × 26,154.72
  4. Step 4: Simplify right side
    92,708.91x = 3,637,308,140.21
  5. Step 5: Solve for x
    x = 3,637,308,140.21/92,708.91
  6. Step 6: Final answer
    x = 39,233.64

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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.