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Finding the Fourth Proportional to 92,693.40, 139,040.10 and 46,037.40

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Solution

The fourth proportional to 92,693.40, 139,040.10 and 46,037.40 is: 69,056.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,693.40 : 139,040.10 = 46,037.40 : x
  2. Step 2: Convert to fraction form
    92,693.40/139,040.10 = 46,037.40/x
  3. Step 3: Cross multiply
    92,693.40x = 139,040.10 × 46,037.40
  4. Step 4: Simplify right side
    92,693.40x = 6,401,044,699.74
  5. Step 5: Solve for x
    x = 6,401,044,699.74/92,693.40
  6. Step 6: Final answer
    x = 69,056.10

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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.