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Finding the Third Proportional to 72,520,980.75 and 112,457,818.13

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Solution

The third proportional to 72,520,980.75 and 112,457,818.13 is: 174,387,614.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,520,980.75 : 112,457,818.13 = 112,457,818.13 : x
  2. Step 2: Convert to fraction form
    72,520,980.75/112,457,818.13 = 112,457,818.13/x
  3. Step 3: Cross multiply
    72,520,980.75x = 112,457,818.13 × 112,457,818.13
  4. Step 4: Simplify right side
    72,520,980.75x = 12,646,760,857,435,578
  5. Step 5: Solve for x
    x = 12,646,760,857,435,578/72,520,980.75
  6. Step 6: Final answer
    x = 174,387,614.82

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.