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Finding the Fourth Proportional to 672,681,236.52, 1,009,074,678 and 181,387,109.64

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Solution

The fourth proportional to 672,681,236.52, 1,009,074,678 and 181,387,109.64 is: 272,094,908.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,681,236.52 : 1,009,074,678 = 181,387,109.64 : x
  2. Step 2: Convert to fraction form
    672,681,236.52/1,009,074,678 = 181,387,109.64/x
  3. Step 3: Cross multiply
    672,681,236.52x = 1,009,074,678 × 181,387,109.64
  4. Step 4: Simplify right side
    672,681,236.52x = 183,033,139,253,333,696
  5. Step 5: Solve for x
    x = 183,033,139,253,333,696/672,681,236.52
  6. Step 6: Final answer
    x = 272,094,908.13

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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.