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Finding the Fourth Proportional to 61,140.70, 85,752.50 and 61,140.70

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Solution

The fourth proportional to 61,140.70, 85,752.50 and 61,140.70 is: 85,752.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,140.70 : 85,752.50 = 61,140.70 : x
  2. Step 2: Convert to fraction form
    61,140.70/85,752.50 = 61,140.70/x
  3. Step 3: Cross multiply
    61,140.70x = 85,752.50 × 61,140.70
  4. Step 4: Simplify right side
    61,140.70x = 5,242,967,876.75
  5. Step 5: Solve for x
    x = 5,242,967,876.75/61,140.70
  6. Step 6: Final answer
    x = 85,752.50

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These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.