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Finding the Fourth Proportional to 168,520,643.10, 252,403,051.05 and 168,520,643.10

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Solution

The fourth proportional to 168,520,643.10, 252,403,051.05 and 168,520,643.10 is: 252,403,051.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,520,643.10 : 252,403,051.05 = 168,520,643.10 : x
  2. Step 2: Convert to fraction form
    168,520,643.10/252,403,051.05 = 168,520,643.10/x
  3. Step 3: Cross multiply
    168,520,643.10x = 252,403,051.05 × 168,520,643.10
  4. Step 4: Simplify right side
    168,520,643.10x = 42,535,124,483,348,128
  5. Step 5: Solve for x
    x = 42,535,124,483,348,128/168,520,643.10
  6. Step 6: Final answer
    x = 252,403,051.05

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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.