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Finding the Fourth Proportional to 98,495,986.60, 147,743,979.90 and 98,495,986.60

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Solution

The fourth proportional to 98,495,986.60, 147,743,979.90 and 98,495,986.60 is: 147,743,979.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,495,986.60 : 147,743,979.90 = 98,495,986.60 : x
  2. Step 2: Convert to fraction form
    98,495,986.60/147,743,979.90 = 98,495,986.60/x
  3. Step 3: Cross multiply
    98,495,986.60x = 147,743,979.90 × 98,495,986.60
  4. Step 4: Simplify right side
    98,495,986.60x = 14,552,189,064,461,070
  5. Step 5: Solve for x
    x = 14,552,189,064,461,070/98,495,986.60
  6. Step 6: Final answer
    x = 147,743,979.90

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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.