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Finding the Fourth Proportional to 92,898.16, 139,295.98 and 29,700.72

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Solution

The fourth proportional to 92,898.16, 139,295.98 and 29,700.72 is: 44,534.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,898.16 : 139,295.98 = 29,700.72 : x
  2. Step 2: Convert to fraction form
    92,898.16/139,295.98 = 29,700.72/x
  3. Step 3: Cross multiply
    92,898.16x = 139,295.98 × 29,700.72
  4. Step 4: Simplify right side
    92,898.16x = 4,137,190,899.11
  5. Step 5: Solve for x
    x = 4,137,190,899.11/92,898.16
  6. Step 6: Final answer
    x = 44,534.69

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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.