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Finding the Fourth Proportional to 295,487,537.60, 443,231,306.40 and 90,989,040.80

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Solution

The fourth proportional to 295,487,537.60, 443,231,306.40 and 90,989,040.80 is: 136,483,561.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,487,537.60 : 443,231,306.40 = 90,989,040.80 : x
  2. Step 2: Convert to fraction form
    295,487,537.60/443,231,306.40 = 90,989,040.80/x
  3. Step 3: Cross multiply
    295,487,537.60x = 443,231,306.40 × 90,989,040.80
  4. Step 4: Simplify right side
    295,487,537.60x = 40,329,191,421,866,896
  5. Step 5: Solve for x
    x = 40,329,191,421,866,896/295,487,537.60
  6. Step 6: Final answer
    x = 136,483,561.20

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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.