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Finding the Fourth Proportional to 98,935,605.80, 148,403,408.70 and 83,063,234.60

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Solution

The fourth proportional to 98,935,605.80, 148,403,408.70 and 83,063,234.60 is: 124,594,851.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,935,605.80 : 148,403,408.70 = 83,063,234.60 : x
  2. Step 2: Convert to fraction form
    98,935,605.80/148,403,408.70 = 83,063,234.60/x
  3. Step 3: Cross multiply
    98,935,605.80x = 148,403,408.70 × 83,063,234.60
  4. Step 4: Simplify right side
    98,935,605.80x = 12,326,867,152,287,780
  5. Step 5: Solve for x
    x = 12,326,867,152,287,780/98,935,605.80
  6. Step 6: Final answer
    x = 124,594,851.90

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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.