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Finding the Fourth Proportional to 98,390,872.80, 147,649,294.80 and 57,450,232.80

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Solution

The fourth proportional to 98,390,872.80, 147,649,294.80 and 57,450,232.80 is: 86,212,126.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,390,872.80 : 147,649,294.80 = 57,450,232.80 : x
  2. Step 2: Convert to fraction form
    98,390,872.80/147,649,294.80 = 57,450,232.80/x
  3. Step 3: Cross multiply
    98,390,872.80x = 147,649,294.80 × 57,450,232.80
  4. Step 4: Simplify right side
    98,390,872.80x = 8,482,486,359,015,830
  5. Step 5: Solve for x
    x = 8,482,486,359,015,830/98,390,872.80
  6. Step 6: Final answer
    x = 86,212,126.37

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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.