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Finding the Fourth Proportional to 295,486,542.60, 443,229,813.90 and 90,988,045.80

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Solution

The fourth proportional to 295,486,542.60, 443,229,813.90 and 90,988,045.80 is: 136,482,068.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,486,542.60 : 443,229,813.90 = 90,988,045.80 : x
  2. Step 2: Convert to fraction form
    295,486,542.60/443,229,813.90 = 90,988,045.80/x
  3. Step 3: Cross multiply
    295,486,542.60x = 443,229,813.90 × 90,988,045.80
  4. Step 4: Simplify right side
    295,486,542.60x = 40,328,614,607,058,672
  5. Step 5: Solve for x
    x = 40,328,614,607,058,672/295,486,542.60
  6. Step 6: Final answer
    x = 136,482,068.70

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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.