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Finding the Fourth Proportional to 98,496,627.60, 147,744,941.40 and 65,618,144.40

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Solution

The fourth proportional to 98,496,627.60, 147,744,941.40 and 65,618,144.40 is: 98,427,216.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,496,627.60 : 147,744,941.40 = 65,618,144.40 : x
  2. Step 2: Convert to fraction form
    98,496,627.60/147,744,941.40 = 65,618,144.40/x
  3. Step 3: Cross multiply
    98,496,627.60x = 147,744,941.40 × 65,618,144.40
  4. Step 4: Simplify right side
    98,496,627.60x = 9,694,748,899,154,738
  5. Step 5: Solve for x
    x = 9,694,748,899,154,738/98,496,627.60
  6. Step 6: Final answer
    x = 98,427,216.60

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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.