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Finding the Third Proportional to 59,549,040 and 128,990,946

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Solution

The third proportional to 59,549,040 and 128,990,946 is: 279,411,123.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,549,040 : 128,990,946 = 128,990,946 : x
  2. Step 2: Convert to fraction form
    59,549,040/128,990,946 = 128,990,946/x
  3. Step 3: Cross multiply
    59,549,040x = 128,990,946 × 128,990,946
  4. Step 4: Simplify right side
    59,549,040x = 16,638,664,149,974,916
  5. Step 5: Solve for x
    x = 16,638,664,149,974,916/59,549,040
  6. Step 6: Final answer
    x = 279,411,123.17

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.