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Finding the Fourth Proportional to 98,664,029.80, 147,996,044.70 and 97,152,375.40

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Solution

The fourth proportional to 98,664,029.80, 147,996,044.70 and 97,152,375.40 is: 145,728,563.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,664,029.80 : 147,996,044.70 = 97,152,375.40 : x
  2. Step 2: Convert to fraction form
    98,664,029.80/147,996,044.70 = 97,152,375.40/x
  3. Step 3: Cross multiply
    98,664,029.80x = 147,996,044.70 × 97,152,375.40
  4. Step 4: Simplify right side
    98,664,029.80x = 14,378,167,292,409,580
  5. Step 5: Solve for x
    x = 14,378,167,292,409,580/98,664,029.80
  6. Step 6: Final answer
    x = 145,728,563.10

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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.