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Finding the Fourth Proportional to 616,122.40, 924,212.40 and 195,431.20

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Solution

The fourth proportional to 616,122.40, 924,212.40 and 195,431.20 is: 293,155.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,122.40 : 924,212.40 = 195,431.20 : x
  2. Step 2: Convert to fraction form
    616,122.40/924,212.40 = 195,431.20/x
  3. Step 3: Cross multiply
    616,122.40x = 924,212.40 × 195,431.20
  4. Step 4: Simplify right side
    616,122.40x = 180,619,938,386.88
  5. Step 5: Solve for x
    x = 180,619,938,386.88/616,122.40
  6. Step 6: Final answer
    x = 293,155.94

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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.