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Finding the Third Proportional to 163,538,145 and 358,851,685

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Solution

The third proportional to 163,538,145 and 358,851,685 is: 787,428,106.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,538,145 : 358,851,685 = 358,851,685 : x
  2. Step 2: Convert to fraction form
    163,538,145/358,851,685 = 358,851,685/x
  3. Step 3: Cross multiply
    163,538,145x = 358,851,685 × 358,851,685
  4. Step 4: Simplify right side
    163,538,145x = 128,774,531,827,339,232
  5. Step 5: Solve for x
    x = 128,774,531,827,339,232/163,538,145
  6. Step 6: Final answer
    x = 787,428,106.31

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.