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Finding the Fourth Proportional to 496,386.80, 744,580.20 and 141,396.20

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Solution

The fourth proportional to 496,386.80, 744,580.20 and 141,396.20 is: 212,094.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,386.80 : 744,580.20 = 141,396.20 : x
  2. Step 2: Convert to fraction form
    496,386.80/744,580.20 = 141,396.20/x
  3. Step 3: Cross multiply
    496,386.80x = 744,580.20 × 141,396.20
  4. Step 4: Simplify right side
    496,386.80x = 105,280,810,875.24
  5. Step 5: Solve for x
    x = 105,280,810,875.24/496,386.80
  6. Step 6: Final answer
    x = 212,094.30

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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.