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Finding the Fourth Proportional to 119,579,058.47, 179,368,589.88 and 28,702,647.47

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Solution

The fourth proportional to 119,579,058.47, 179,368,589.88 and 28,702,647.47 is: 43,053,971.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,579,058.47 : 179,368,589.88 = 28,702,647.47 : x
  2. Step 2: Convert to fraction form
    119,579,058.47/179,368,589.88 = 28,702,647.47/x
  3. Step 3: Cross multiply
    119,579,058.47x = 179,368,589.88 × 28,702,647.47
  4. Step 4: Simplify right side
    119,579,058.47x = 5,148,353,402,965,071
  5. Step 5: Solve for x
    x = 5,148,353,402,965,071/119,579,058.47
  6. Step 6: Final answer
    x = 43,053,971.73

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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.