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Finding the Fourth Proportional to 103,575.53, 155,386.08 and 61,494.01

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Solution

The fourth proportional to 103,575.53, 155,386.08 and 61,494.01 is: 92,254.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,575.53 : 155,386.08 = 61,494.01 : x
  2. Step 2: Convert to fraction form
    103,575.53/155,386.08 = 61,494.01/x
  3. Step 3: Cross multiply
    103,575.53x = 155,386.08 × 61,494.01
  4. Step 4: Simplify right side
    103,575.53x = 9,555,312,768.92
  5. Step 5: Solve for x
    x = 9,555,312,768.92/103,575.53
  6. Step 6: Final answer
    x = 92,254.54

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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.