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Finding the Fourth Proportional to 98,495,999.90, 147,743,999.85 and 26,692,415.90

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Solution

The fourth proportional to 98,495,999.90, 147,743,999.85 and 26,692,415.90 is: 40,038,623.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,495,999.90 : 147,743,999.85 = 26,692,415.90 : x
  2. Step 2: Convert to fraction form
    98,495,999.90/147,743,999.85 = 26,692,415.90/x
  3. Step 3: Cross multiply
    98,495,999.90x = 147,743,999.85 × 26,692,415.90
  4. Step 4: Simplify right side
    98,495,999.90x = 3,943,644,290,725,737
  5. Step 5: Solve for x
    x = 3,943,644,290,725,737/98,495,999.90
  6. Step 6: Final answer
    x = 40,038,623.85

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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.