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Finding the Third Proportional to 66,477,655.50 and 102,117,818.25

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Solution

The third proportional to 66,477,655.50 and 102,117,818.25 is: 156,865,471.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,477,655.50 : 102,117,818.25 = 102,117,818.25 : x
  2. Step 2: Convert to fraction form
    66,477,655.50/102,117,818.25 = 102,117,818.25/x
  3. Step 3: Cross multiply
    66,477,655.50x = 102,117,818.25 × 102,117,818.25
  4. Step 4: Simplify right side
    66,477,655.50x = 10,428,048,804,140,034
  5. Step 5: Solve for x
    x = 10,428,048,804,140,034/66,477,655.50
  6. Step 6: Final answer
    x = 156,865,471.95

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.