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Finding the Fourth Proportional to 149,688,026.90, 209,053,054.30 and 149,688,026.90

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Solution

The fourth proportional to 149,688,026.90, 209,053,054.30 and 149,688,026.90 is: 209,053,054.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,688,026.90 : 209,053,054.30 = 149,688,026.90 : x
  2. Step 2: Convert to fraction form
    149,688,026.90/209,053,054.30 = 149,688,026.90/x
  3. Step 3: Cross multiply
    149,688,026.90x = 209,053,054.30 × 149,688,026.90
  4. Step 4: Simplify right side
    149,688,026.90x = 31,292,739,215,585,564
  5. Step 5: Solve for x
    x = 31,292,739,215,585,564/149,688,026.90
  6. Step 6: Final answer
    x = 209,053,054.30

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.