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Finding the Fourth Proportional to 98,412,051.90, 147,618,077.85 and 98,412,051.90

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Solution

The fourth proportional to 98,412,051.90, 147,618,077.85 and 98,412,051.90 is: 147,618,077.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,412,051.90 : 147,618,077.85 = 98,412,051.90 : x
  2. Step 2: Convert to fraction form
    98,412,051.90/147,618,077.85 = 98,412,051.90/x
  3. Step 3: Cross multiply
    98,412,051.90x = 147,618,077.85 × 98,412,051.90
  4. Step 4: Simplify right side
    98,412,051.90x = 14,527,397,938,752,440
  5. Step 5: Solve for x
    x = 14,527,397,938,752,440/98,412,051.90
  6. Step 6: Final answer
    x = 147,618,077.85

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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.