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Finding the Third Proportional to 40,539,681 and 87,456,643.88

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Solution

The third proportional to 40,539,681 and 87,456,643.88 is: 188,671,059.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,539,681 : 87,456,643.88 = 87,456,643.88 : x
  2. Step 2: Convert to fraction form
    40,539,681/87,456,643.88 = 87,456,643.88/x
  3. Step 3: Cross multiply
    40,539,681x = 87,456,643.88 × 87,456,643.88
  4. Step 4: Simplify right side
    40,539,681x = 7,648,664,557,878,575
  5. Step 5: Solve for x
    x = 7,648,664,557,878,575/40,539,681
  6. Step 6: Final answer
    x = 188,671,059.30

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.