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Finding the Fourth Proportional to 351,071.75, 526,130.33 and 148,499.39

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Solution

The fourth proportional to 351,071.75, 526,130.33 and 148,499.39 is: 222,547.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,071.75 : 526,130.33 = 148,499.39 : x
  2. Step 2: Convert to fraction form
    351,071.75/526,130.33 = 148,499.39/x
  3. Step 3: Cross multiply
    351,071.75x = 526,130.33 × 148,499.39
  4. Step 4: Simplify right side
    351,071.75x = 78,130,029,692.35
  5. Step 5: Solve for x
    x = 78,130,029,692.35/351,071.75
  6. Step 6: Final answer
    x = 222,547.19

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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.