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Finding the Fourth Proportional to 163,703,908.60, 245,555,862.90 and 112,047,843.40

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Solution

The fourth proportional to 163,703,908.60, 245,555,862.90 and 112,047,843.40 is: 168,071,765.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,703,908.60 : 245,555,862.90 = 112,047,843.40 : x
  2. Step 2: Convert to fraction form
    163,703,908.60/245,555,862.90 = 112,047,843.40/x
  3. Step 3: Cross multiply
    163,703,908.60x = 245,555,862.90 × 112,047,843.40
  4. Step 4: Simplify right side
    163,703,908.60x = 27,514,004,872,171,072
  5. Step 5: Solve for x
    x = 27,514,004,872,171,072/163,703,908.60
  6. Step 6: Final answer
    x = 168,071,765.10

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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.