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Finding the Fourth Proportional to 92,700.96, 139,050 and 22,580.16

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Solution

The fourth proportional to 92,700.96, 139,050 and 22,580.16 is: 33,869.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,700.96 : 139,050 = 22,580.16 : x
  2. Step 2: Convert to fraction form
    92,700.96/139,050 = 22,580.16/x
  3. Step 3: Cross multiply
    92,700.96x = 139,050 × 22,580.16
  4. Step 4: Simplify right side
    92,700.96x = 3,139,771,248
  5. Step 5: Solve for x
    x = 3,139,771,248/92,700.96
  6. Step 6: Final answer
    x = 33,869.89

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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.